{"id":43,"date":"2026-10-15T19:18:00","date_gmt":"2026-10-15T23:18:00","guid":{"rendered":"https:\/\/www.freystuff.com\/?page_id=43"},"modified":"2026-10-15T20:42:36","modified_gmt":"2026-10-16T00:42:36","slug":"inventory-of-slide-rules-and-other-things","status":"publish","type":"page","link":"https:\/\/www.freystuff.com\/index.php\/inventory-of-slide-rules-and-other-things\/","title":{"rendered":"Inventory of Slide Rules and Other Things"},"content":{"rendered":"\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Manufacturer<\/th>Model<\/th>Year<\/th>Serial Number<\/th>Origin<\/th>Type<\/th>Length<\/th>Material<\/th>Duplex<\/th>Case<\/th>Box<\/th>Problem<\/th>Accession No.<\/th>Location<\/th>Scanned<\/th>\n<\/tr>\n<\/thead>\n
A W Faber<\/td>1\/87 Calculating Rule<\/td>1975<\/td><\/td>Germany<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-407<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
A W Faber<\/td>1\/87 Calculating Rule<\/td>1975<\/td><\/td>Germany<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-403<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
A W Faber<\/td>Pre-360 Decimal Tracker Cursor<\/td>1900<\/td><\/td>Germany<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-405<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
A W Faber<\/td>Pre-364<\/td>1910<\/td><\/td>Germany<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-406<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
A. M. Stephenson<\/td>Stephenson Adder<\/td>0<\/td><\/td>USA<\/td>Additator<\/td>9.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-880<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Aaron Palmer<\/td>Palmer\u2019s Computing Scale<\/td>1843<\/td><\/td>USA<\/td>Circular<\/td>21.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-841<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
ACU-Math Manual<\/td>Mannheim Type Slide Rule No. 44<\/td>0<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-753<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Acumath<\/td>400 Simplex Trig<\/td>1968<\/td>R F Leach<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-580<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Acumath<\/td>400B Simplex Trig<\/td>1965<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-353<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Acumath<\/td>400T Simplex Trig<\/td>0<\/td><\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-354<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Acumath<\/td>600 Basic Trig<\/td>1955<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-355<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Acumath<\/td>Instructions for using Trig and Log Log Slide Rules<\/td>1965<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-621B<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Acumath – Berger Scientific supplies<\/td>C2141<\/td>1965<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-622<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Acumath – Berger Scientific supplies<\/td>C2165 Log Log Decimal Trig<\/td>1965<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-621<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Aero Products Reasearch, Inc.<\/td>E6-B2 Flight Computer<\/td>1978<\/td><\/td>No Value<\/td>No Value<\/td>24.5<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-465<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Albert Nestler<\/td>14 Micronta<\/td>1952<\/td><\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-402<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Albert Nestler<\/td>23R Rietz<\/td>0<\/td><\/td>Germany<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-401<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Albert Nestler<\/td>24 Rietz<\/td>0<\/td><\/td>Germany<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-624<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Albert Nestler<\/td>A N<\/td>0<\/td><\/td>Germany<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-400<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Albert Nestler<\/td>Mannheim<\/td>1939<\/td>G. T. Pound<\/td>Germany<\/td>Linear<\/td>35.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>Sold<\/td>Sold<\/td>0<\/td>\n<\/tr>\n
American Adding Machine<\/td>5<\/td>0<\/td>55237<\/td>USA<\/td>Adding Machine<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-769<\/td>Workshop<\/td>0<\/td>\n<\/tr>\n
American Blueprint Co.<\/td>Military Slide Rule<\/td>0<\/td>SA613<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-468<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
American Blueprint Co.<\/td>Military Slide Rule<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-469<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
American Hydromath Company<\/td>V-C-2 Trim & compactly Computer<\/td>1944<\/td><\/td>USA<\/td>Special<\/td>15.8<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-876<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
American Pattern Works<\/td>Weight Slide Rule<\/td>0<\/td><\/td>USA<\/td>Special<\/td>38.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-423<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
American Radio Relay League, Inc.<\/td>Ligthning Calculator Type A<\/td>1932<\/td><\/td>USA<\/td>Special<\/td>18.5<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-521<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
American Slide-Chart Corp.<\/td>Axelson Factorule for Oil Wells<\/td>1980<\/td><\/td>USA<\/td>Special<\/td>14.2<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-432<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
American Slide-Chart Corp.<\/td>ENI Power Level Conversion Chart<\/td>1984<\/td><\/td>USA<\/td>Special<\/td>15.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-631<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
Amphenol<\/td>Amphenol RF Calculator, Smith Chart<\/td>1969<\/td><\/td>USA<\/td>Special<\/td>22.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-520<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
Amtronix, Inc.<\/td>Caliputer<\/td>1965<\/td><\/td>USA<\/td>Special<\/td>10.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-445<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Anson<\/td>Am Inst Chem Eng<\/td>0<\/td>1-2012KG.F.<\/td>USA<\/td>Jewelry<\/td>4.5<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-639<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Apec Products Corp.<\/td>Magic Multiplying Pencil<\/td>0<\/td><\/td>USA<\/td>Special<\/td>16.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-665<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
AREL G-W<\/td>Photo Slide Rule<\/td>1946<\/td><\/td>USA<\/td>Special<\/td>29.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-623<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Argonaut Associates<\/td>Circular SLide Rule<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>4.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-792<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Aristo<\/td>0968 Studio<\/td>1960<\/td>5938<\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-583<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Aristo<\/td>0968 Studio<\/td>1960<\/td>604<\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-415<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Aristo<\/td>0969 StudioLog<\/td>1973<\/td>2LS 9<\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-416<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Aristo<\/td>10175 Electronic<\/td>0<\/td><\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-414<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Aristo<\/td>868 Studio<\/td>1973<\/td>2LST10<\/td>Germany<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-411<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Aristo<\/td>869 Studiolog<\/td>1972<\/td>2LIT1<\/td>Germany<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-412<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Aristo<\/td>870 Multilog<\/td>1967<\/td>2FL08<\/td>Germany<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-413<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Aristo Charvoz<\/td>0970 MultiLog<\/td>1969<\/td>2FX21<\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-418<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Aristo Charvoz<\/td>0970P MultiLog<\/td>1969<\/td>572<\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-417<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Aristo Charvoz<\/td>0971 Aristo-Hyperbolog<\/td>1960<\/td>601<\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-419<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Arithma<\/td>Addiator<\/td>0<\/td><\/td>Germany<\/td>Additator<\/td>16.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-475<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Arithma<\/td>Addiator<\/td>0<\/td><\/td>Germany<\/td>Additator<\/td>16.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-476<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Arithma<\/td>Addiator<\/td>0<\/td><\/td>Germany<\/td>Additator<\/td>16.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-474<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Armour and Company<\/td>Retail Meat Pricer<\/td>1933<\/td><\/td>USA<\/td>Special<\/td>22.5<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-459<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Automatic Adding Machine CO<\/td>Golden Gem<\/td>0<\/td>50857<\/td>USA<\/td>Additator<\/td>13.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-532<\/td>MHF-D12<\/td>0<\/td>\n<\/tr>\n
Automatic Adding Machine CO<\/td>Golden Gem Model 16<\/td>0<\/td>102028<\/td>USA<\/td>Additator<\/td>13.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-533<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
B. L. Makepeace<\/td><\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>4.5<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-640<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
B. T. U. Rule Co.<\/td>B. T. U. rule for Est. Steam or Water Rad.<\/td>1911<\/td><\/td>USA<\/td>Linear<\/td>29.5<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>1<\/td>MHF-440<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Baron Buckles<\/td>Engineer<\/td>1981<\/td><\/td>Taiwan<\/td>Jewelry<\/td>7.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-641<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Bastian Bros. Co<\/td>JETS Lapel Pin<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>2.4<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-637<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Bastian Bros.co<\/td>JETS \/ Keuffel & Esser Lapel Pin<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>2.4<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-638<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Belcher Bros & Co<\/td>Shoe Fitting Ruler<\/td>1900<\/td><\/td>USA<\/td>Special<\/td>39.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-272<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Bieker’s<\/td>Concrete Volume Computer<\/td>0<\/td><\/td>USA<\/td>Special<\/td>16.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-452<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Blundell Rules Limited<\/td>P16-D<\/td>1956<\/td>PEM Gift<\/td>UK<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-395<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Blundell Rules Limited<\/td>Pilot Ballon Slide Rule, Mark IV<\/td>0<\/td>2768\/56<\/td>UK<\/td>Special<\/td>60.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-489<\/td>MHF-D14<\/td>0<\/td>\n<\/tr>\n
Boonshaft & Fuchs, Inc \/ Servo Calculator Company<\/td>Direct Reading Frequency Response Slide Rule<\/td>1959<\/td><\/td>USA<\/td>Special<\/td>35.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-634<\/td>MHF-D13<\/td>0<\/td>\n<\/tr>\n
Brady Publishing Company<\/td>Slide Rule Problems Junior & Senior High School<\/td>1958<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-750<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Brevets Kaufman SDBG FR.<\/td>Baby-Cine Posograph<\/td>0<\/td><\/td>France<\/td>Special<\/td>12.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-547<\/td>Cabinet<\/td>1<\/td>\n<\/tr>\n
Bundle Harling<\/td>S150-10P Overhead Projection Slide Rule<\/td>0<\/td><\/td>UK<\/td>Linear<\/td>20.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-865<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Burroughs Adding Machine Company<\/td>Burroughs Calcualtor, Class 5<\/td>0<\/td><\/td>USA<\/td>Adding Machine<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-774<\/td>Rolltop<\/td>0<\/td>\n<\/tr>\n
Burroughs Adding Machine Company<\/td>Class 2 Adding Machine<\/td>1920<\/td>2-661759<\/td>USA<\/td>Adding Machine<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-771<\/td>Workshop<\/td>0<\/td>\n<\/tr>\n
Burroughs Adding Machine Company<\/td>Manual of Instructions for Burroughs Calculator<\/td>1928<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-775<\/td>Rolltop<\/td>0<\/td>\n<\/tr>\n
C-Thru Ruler Company<\/td>C-Thru Pocket Slide Rule NO. 27<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>14.8<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-376<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Chadwick<\/td><\/td>1960<\/td><\/td>Japan<\/td>Adding Machine<\/td>11.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-768<\/td>Workshop<\/td>0<\/td>\n<\/tr>\n
Charles Bruning Co.<\/td>2401<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-358<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Charles Bruning Co.<\/td>2401<\/td>0<\/td>Smith…<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-356<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Charles Bruning Co.<\/td>2401<\/td>1944<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-357<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Charles Bruning Co.<\/td>2420 Simplex<\/td>0<\/td>Ashok K<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-359<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Charles C. Ettien<\/td>Speed & HP Estimator<\/td>1959<\/td><\/td>USA<\/td>Special<\/td>10.8<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-515<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Charvoz-Roos<\/td>PSR-102<\/td>1941<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-361<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Charvoz-Roos<\/td>SR-109<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-579<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Charvoz-Roos<\/td>SR-109<\/td>1941<\/td>GH<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-362<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Charvoz-Roos<\/td>SR-109<\/td>1946<\/td>LG<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-360<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Chemical Rubber Publishing Co.<\/td>Trigonograph<\/td>1934<\/td><\/td>USA<\/td>Special<\/td>30.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-667<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
Concise<\/td>28N<\/td>0<\/td>Bermuda Tool & Die<\/td>Japan<\/td>Circular<\/td>6.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-496<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Concise<\/td>28N Keyline<\/td>0<\/td>Magnetic Sheild Division<\/td>Japan<\/td>Circular<\/td>6.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-497<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Contina AG Maureen<\/td>Curta Calculator Type 1<\/td>1969<\/td>77450<\/td>Liechtenstien<\/td>Additator<\/td>85.0<\/td>Metal<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-562<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Contina Ltd Maureen<\/td>Curta Calculator Type 2<\/td>1953<\/td>500869<\/td>Liechtenstien<\/td>Additator<\/td>90.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-563<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Contina Ltd Maureen<\/td>Curta Calculator Type 2<\/td>1964<\/td>526792<\/td>Liechtenstien<\/td>Additator<\/td>90.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-563<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Contina Ltd Maureen<\/td>Service Manual Model 1 8x6x11<\/td>1967<\/td>Reproduction<\/td>Liechtenstien<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-842<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Continential Motors Corporation<\/td>Motor Performance<\/td>0<\/td><\/td>USA<\/td>Special<\/td>0.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-451<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Corona Star<\/td>Renown Star Lighter<\/td>0<\/td><\/td>Japan<\/td>Jewelry<\/td>3.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-642<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Cox & Stevens<\/td>C-130B Load Adjuster<\/td>0<\/td>2301-1680-565-7735<\/td>USA<\/td>Special<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-466<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Creative Workshop<\/td>Universal Circle Metric Converter<\/td>1970<\/td><\/td>Hong Kong<\/td>Cylindrical<\/td>7.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-767<\/td>Top Flat Files<\/td>0<\/td>\n<\/tr>\n
Creative Workshop<\/td>Universal Circle Metric Converter<\/td>1977<\/td><\/td>Hong Kong<\/td>Cylindrical<\/td>7.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-561<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Creative Workshop<\/td>Universal Circle Slide Rule<\/td>1970<\/td><\/td>Denmark<\/td>Cylindrical<\/td>7.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-560<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Creative Workshop<\/td>Universal Circle Slide Rule<\/td>1970<\/td><\/td>Denmark<\/td>Cylindrical<\/td>7.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-871<\/td>Top Flat Files<\/td>0<\/td>\n<\/tr>\n
Crosby Steam Gauge & Valve Co<\/td>Steam Gauge<\/td>0<\/td>6432D<\/td>USA<\/td>Other<\/td>0.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-778<\/td>Bookcase-2<\/td>0<\/td>\n<\/tr>\n
Crown Paper Board Co., Inc<\/td>Paper Box Board Rule<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>15.7<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-425<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Cubic Calculator Company<\/td>HC Cube Master<\/td>1964<\/td><\/td>USA<\/td>Special<\/td>20.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-518<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
D. HedBerg<\/td>Graphic Chemical Predictor<\/td>1958<\/td><\/td>USA<\/td>Special<\/td>20.5<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-522<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
DAL<\/td>Executive Slide Rule Problem Solver<\/td>1963<\/td><\/td>USA<\/td>Special<\/td>25.5<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-379<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Danfoss<\/td>Refrigerant Slide RT.0X.A5.00<\/td>0<\/td><\/td>Denmark<\/td>Linear<\/td>0.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-447<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Datarule Publishing Co.<\/td>Datarule Model B<\/td>1950<\/td>Samuel Heller<\/td>USA<\/td>Linear<\/td>21.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-431<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Dennert & Pape<\/td>Hazen-Williams Hydraulic<\/td>1923<\/td>D.R.P.No126499<\/td>Germany<\/td>Special<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-435<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Dennert & Pape, Altoona<\/td>D.R.P. No. 126499<\/td>0<\/td><\/td>France<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-823<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Devco<\/td>Slide Pen Cyl Model 20<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>10.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-643<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Dietzgen<\/td>1734 Microglide Decimal Trig Log Log<\/td>1970<\/td>031310<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-366<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen<\/td>1735 Maniphase Log Log Vector<\/td>1952<\/td>107274<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-367<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen<\/td>1738 Multiphase Style-M<\/td>1954<\/td><\/td>Germany<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-791<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen<\/td>1739-L Clear-Scale<\/td>1954<\/td><\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-399<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen<\/td>1759-B Closed Simplex<\/td>1927<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-363<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen<\/td>1762-B Mannheim Slide Rule<\/td>1907<\/td>59 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-877<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen<\/td>1767P National<\/td>1952<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-364<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen<\/td>1768P Reliance<\/td>1940<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>1<\/td>ISRM<\/td>ISRM<\/td>0<\/td>\n<\/tr>\n
Dietzgen<\/td>1771 Redirule, Wide Metal Cursor<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-858<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen<\/td>1773 Log-Log<\/td>1962<\/td>1262<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-368<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen<\/td>B-1725 Vector Type Log Log<\/td>1965<\/td><\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-365<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen<\/td>N1733 Polymath Decimal Trig Log Log<\/td>1959<\/td>8343<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-582<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Dietzgen Manual<\/td>Decimal Trig Log Log Slide Rule<\/td>1959<\/td>1786, P-415<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-698<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen Manual<\/td>How to Use a SLIDE RULE<\/td>1942<\/td>M1786\/5104\/WL 10<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-859<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen Manual<\/td>Maniphase Slide Rule<\/td>0<\/td>AM\/1767\/ISB<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-700<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dietzgen Manual<\/td>Slide Rule No 1774 System Darmstadt Instructions<\/td>0<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-701<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Dilts<\/td>Paper Stock Horsepower and Volume Calculator<\/td>0<\/td><\/td>USA<\/td>Special<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-427<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Diwa<\/td>611-1 Electro Pocket<\/td>0<\/td><\/td>Denmark<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-626<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
E. S. A. Ltd Holborn Viaduct<\/td>Harrow Mark Reducer<\/td>0<\/td><\/td>UK<\/td>Special<\/td>55.9<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-486<\/td>MHF-D25<\/td>1<\/td>\n<\/tr>\n
E. W. Hiltpold<\/td>Hiltpold SLide Rule<\/td>1947<\/td>+Pat 227376<\/td>Switzerland<\/td>Circular<\/td>10.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-854<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
E. W. Hiltpold <\/td>Hiltpold Slide Rule<\/td>1947<\/td>+ Pat 227376<\/td>Switzerland<\/td>Circular<\/td>10.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-614<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
E.TATA<\/td>Beginner’s Slide Rule 555<\/td>0<\/td><\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-390<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Eco Bra<\/td>1260 All-Aluminum<\/td>0<\/td><\/td>Germany<\/td>Linear<\/td>12.5<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-795<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Eco Bra<\/td>1461 Syst. Reitz – Pinturas Vencedor<\/td>0<\/td><\/td>Germany<\/td>Linear<\/td>12.5<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-793<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Edmund Scientific Co.<\/td>Edmund S.N. 40,752 Chemical Predictor<\/td>0<\/td>602533-1<\/td>USA<\/td>Special<\/td>27.7<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-630<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
Engineering Instruments<\/td>10-B?<\/td>1959<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-334<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Engineering Instruments<\/td>10B Deluxe<\/td>1967<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-335<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Engineering Instruments<\/td>Code Maker<\/td>0<\/td><\/td>USA<\/td>Special<\/td>18.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-341<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Engineering Instruments<\/td>The Quick and Easy Slide Rule Instruction Book<\/td>0<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-340C<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
F C Farmar<\/td>Farmar’s Rule<\/td>1920<\/td><\/td>UK<\/td>Special<\/td>42.2<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-456<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Faber Castell<\/td>111\/87A Addiator Rietz<\/td>1957<\/td>57 11<\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-404<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Faber Castell<\/td>2\/83N Novo-Biplex<\/td>1962<\/td><\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-410<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Faber Castell<\/td>2\/84 Mathema<\/td>1953<\/td>1153<\/td>Germany<\/td>Linear<\/td>26.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-870<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Faber Castell<\/td>2\/84 Mathema<\/td>1956<\/td><\/td>Germany<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-878<\/td>MJH-D23<\/td>0<\/td>\n<\/tr>\n
Faber Castell<\/td>62\/83N Novo-Duplex<\/td>1974<\/td><\/td>Germany<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-409<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Faber Castell<\/td>8\/10<\/td>1975<\/td><\/td>Germany<\/td>Circular<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-620<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Fearns Calculators<\/td>Inertia Calculator for Rotating Masses<\/td>0<\/td><\/td>UK<\/td>Special<\/td>19.1<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-527<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
Felt & Terrant Mfg. Co.<\/td>Comptometer<\/td>1920<\/td><\/td>USA<\/td>Adding Machine<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-772<\/td>Workshop<\/td>0<\/td>\n<\/tr>\n
Feutron<\/td>Feuchte-Rechenstab – typ 1802<\/td>0<\/td><\/td>Germany<\/td>Linear<\/td>27.0<\/td>Plastic<\/td>1<\/td>0<\/td>1<\/td>0<\/td>MHF-441<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Firth Sterling Steel & Carbide Corp.<\/td>Wire Drafting Calculator<\/td>1951<\/td><\/td>USA<\/td>Circular<\/td>11.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-618<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Fowler<\/td>Universal Calculator<\/td>1950<\/td><\/td>UK<\/td>Circular<\/td>7.5<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-806<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Fowler<\/td>Universal Calculator<\/td>1950<\/td><\/td>UK<\/td>Circular<\/td>7.5<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-494<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Foxboro Company<\/td>Pub 19, Valve & Meter SR<\/td>1962<\/td><\/td>USA<\/td>Special<\/td>13.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-434<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Foxboro Company<\/td>Pub 19, Valve & Meter SR<\/td>1971<\/td><\/td>USA<\/td>Special<\/td>13.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-433<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Fredrick Post Co.<\/td>1441<\/td>1951<\/td>BL<\/td>Japan<\/td>Linear<\/td>10.1<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-381<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Fredrick Post Co.<\/td>1444K<\/td>1951<\/td><\/td>Japan<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-383<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Fredrick Post Co.<\/td>1446<\/td>0<\/td><\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-384<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Fredrick Post Co.<\/td>1460 Versalog<\/td>0<\/td>004557<\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-812<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Fredrick Post Co.<\/td>1462<\/td>0<\/td><\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>1<\/td>1<\/td>MHF-613<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Fredrick Post Co.<\/td>How to operate your Post Slide Rule<\/td>0<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-815<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Fuji<\/td>551 RCA<\/td>0<\/td><\/td>Japan<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-391<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
G. Felsenthal & Sonc, Inc.<\/td>FAA-46C Computer, Air Navigation<\/td>0<\/td>AF5916761<\/td>USA<\/td>Special<\/td>28.2<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-464<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Gebr. Whichmann m.b.H.<\/td>1417<\/td>0<\/td><\/td>Germany<\/td>Linear<\/td>26.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-853<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Geo. W. Richardson<\/td>1776 Polymetric with CI<\/td>1912<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-350<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Geo. W. Richardson<\/td>1776 Simplex<\/td>1912<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-351<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Geo. W. Richardson<\/td>1776 Simplex<\/td>1912<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-348<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Geo. W. Richardson<\/td>1812 Pantocrat Mannheim<\/td>1912<\/td>Technical Supply Co.<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-349<\/td>Mike Syphers<\/td>0<\/td>\n<\/tr>\n
Geo. W. Richardson<\/td>1917 Military<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>43.4<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-352<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Geo. W. Richardson<\/td>812 Pantocrat Slide Rule<\/td>1912<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-346<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Geo. W. Richardson<\/td>812 Pantocrat Slide Rule<\/td>1912<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-347<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Geo. W. Richardson<\/td>Direct Reading Slide Rule<\/td>1912<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-874<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Geo. W. Richardson<\/td>Pantocrat Slide Rule<\/td>1911<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-345<\/td>Mike Syphers<\/td>0<\/td>\n<\/tr>\n
Geo. W. Richardson<\/td>Pantocrat Slide Rule – 4 Slides<\/td>1911<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-816<\/td>Mike Syphers<\/td>0<\/td>\n<\/tr>\n
Geo. W. Richardson<\/td>The Slide Rule Simplifed<\/td>1918<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-688<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Gerber Scientific Instrument Co.<\/td>GA-103 Gerber Graphanalogue<\/td>0<\/td><\/td>USA<\/td>Special<\/td>23.5<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-801<\/td>MHF-D14<\/td>0<\/td>\n<\/tr>\n
Gerber Scientific Instrument Co.<\/td>TP-007100 Variable Scale<\/td>0<\/td><\/td>USA<\/td>Special<\/td>23.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-481<\/td>MHF-D14<\/td>0<\/td>\n<\/tr>\n
Gerber Scientific Instrument Co.<\/td>TP007200B Variable Scale<\/td>0<\/td><\/td>USA<\/td>Special<\/td>50.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-480<\/td>MHF-D14<\/td>0<\/td>\n<\/tr>\n
Gilson<\/td>Atlas Calculator I<\/td>1922<\/td><\/td>USA<\/td>Circular<\/td>24.5<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-501<\/td>MHF-D17<\/td>1<\/td>\n<\/tr>\n
Gilson<\/td>Atlas Calculator II<\/td>1931<\/td><\/td>USA<\/td>Circular<\/td>20.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-540<\/td>Display<\/td>1<\/td>\n<\/tr>\n
Gilson<\/td>Atlas Calculator II – Binary<\/td>1949<\/td>William W. Correll<\/td>USA<\/td>Circular<\/td>20.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-502<\/td>MHF-D17<\/td>1<\/td>\n<\/tr>\n
Gilson<\/td>Atlas Slide Rule III – Binary<\/td>1949<\/td><\/td>USA<\/td>Circular<\/td>20.0<\/td>Metal<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-872<\/td>MHF-D17<\/td>0<\/td>\n<\/tr>\n
Gilson<\/td>Binary<\/td>1931<\/td>Thomas D.Pease<\/td>USA<\/td>Circular<\/td>20.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-504<\/td>MHF-D17<\/td>1<\/td>\n<\/tr>\n
Gilson<\/td>Binary<\/td>1972<\/td>MHF<\/td>USA<\/td>Circular<\/td>20.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-541<\/td>Display<\/td>1<\/td>\n<\/tr>\n
Gilson<\/td>Midget<\/td>1919<\/td><\/td>USA<\/td>Circular<\/td>10.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-505<\/td>MHF-D17<\/td>1<\/td>\n<\/tr>\n
Gilson<\/td>Midget<\/td>1931<\/td><\/td>USA<\/td>Circular<\/td>9.5<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-506<\/td>MHF-D17<\/td>1<\/td>\n<\/tr>\n
Gilson<\/td>Midget<\/td>1960<\/td><\/td>USA<\/td>Circular<\/td>10.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-805<\/td>MHF-D17<\/td>0<\/td>\n<\/tr>\n
Gilson – Dietzgen<\/td>Atlas Slide Rule<\/td>1931<\/td><\/td>USA<\/td>Circular<\/td>20.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-785<\/td>MHF-D17<\/td>0<\/td>\n<\/tr>\n
Gilson – Fredrick Post<\/td>Atlas III Slide Rule<\/td>1931<\/td><\/td>USA<\/td>Circular<\/td>20.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-503<\/td>MHF-D17<\/td>1<\/td>\n<\/tr>\n
Gisholt Machine Co.<\/td>Gisholt Time Computer<\/td>1933<\/td><\/td>USA<\/td>Special<\/td>26.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-814<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Globemaster<\/td>62200 plastic slide rule<\/td>0<\/td><\/td>Japan<\/td>No Value<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-392<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
GUCO<\/td>8200 Concrete Estimator<\/td>0<\/td><\/td>USA<\/td>Special<\/td>18.5<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-454<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Guedon<\/td>5\u201d Metal<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-794<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
H C Calculigraphe<\/td>Calculigraphe Boucher<\/td>1900<\/td><\/td>France<\/td>Circular<\/td>4.5<\/td>Metal<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-267<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Handmade<\/td>Head Depth<\/td>0<\/td>Handmade<\/td>USA<\/td>Special<\/td>20.6<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-444<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Handmade<\/td>Upset Ratio<\/td>0<\/td>Handmade<\/td>USA<\/td>Special<\/td>20.8<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-443<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Hasbro<\/td>Hasbro Adding Machine<\/td>0<\/td><\/td>USA<\/td>Additator<\/td>15.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-843<\/td>Top Flat Files<\/td>0<\/td>\n<\/tr>\n
Hemmi<\/td>256 Radio Communication<\/td>1958<\/td>I L<\/td>Japan<\/td>Special<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-855<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Hemmi<\/td>257 Chemical<\/td>1956<\/td>G E<\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-608<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Hemmi<\/td>257 Chemical<\/td>1965<\/td>P K<\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-609<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Hemmi<\/td>2664<\/td>0<\/td><\/td>Japan<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-610<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Hemmi<\/td>34RK Toshiba – Tokyo Shibaura Electric Co., Ltd.<\/td>1960<\/td><\/td>Japan<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-382<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Hemmi<\/td>40RK<\/td>1969<\/td><\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-385<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Hemmi<\/td>An Instruction Manual for Hemmi Slide Rules P280 and P281<\/td>0<\/td>7004T0<\/td>Japan<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-697<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Hemmi \/ Ahrend<\/td>Algemene Handleiding Voortrekker Rekenlinialen P281<\/td>1969<\/td>Dat1380\/5\/Q<\/td>Germany<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-696<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Hemmi \/ Ahrend<\/td>P281<\/td>1969<\/td>Date Code TL<\/td>Japan<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-386<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Hemmi \/ Fredrick Post Co.<\/td>1447<\/td>1951<\/td><\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-577<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Hemmi \/ Fredrick Post Co.<\/td>1447P<\/td>1965<\/td><\/td>Japan<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-611<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Hemmi \/ Teledyne Post<\/td>44CA-600 Versalog II<\/td>0<\/td>WG<\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-387<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Henry W. Tomlinson, A.I.A.<\/td>The Winslow Strength Computing Slide-Rule<\/td>1932<\/td><\/td>USA<\/td>Special<\/td>26.0<\/td>Paper<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-629<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Hoffman<\/td>Airplane Designer<\/td>1921<\/td>458<\/td>USA<\/td>Special<\/td>15.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-495<\/td>Cabinet<\/td>1<\/td>\n<\/tr>\n
Hoffman Products<\/td>Short Directions for Use of the 10- and 5 inches UTO Slide Rules<\/td>0<\/td>2 copies<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-752<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Ingersoll-Rand Co.<\/td>Cox’s Compressed-Air Discharge Computer<\/td>1900<\/td><\/td>USA<\/td>Special<\/td>11.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-490<\/td>MHF-D16<\/td>1<\/td>\n<\/tr>\n
Inst of Meteorology U of Chicago<\/td>Horizon Temp & Press Gradient Scale<\/td>1943<\/td>John C. Bellamy<\/td>USA<\/td>Special<\/td>22.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-543<\/td>MHF-D16<\/td>1<\/td>\n<\/tr>\n
Inst of Meteorology U of Chicago<\/td>Pressure-Height Slide Rule<\/td>1943<\/td>John C. Bellamy<\/td>USA<\/td>Special<\/td>37.5<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-542<\/td>Shop Wall<\/td>1<\/td>\n<\/tr>\n
IWA De Muiderkring N. V.<\/td>IWA-TRONIC 0272<\/td>1963<\/td><\/td>Germany<\/td>Linear<\/td>20.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-430<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
J. Amsler \/ B. K. Elliott Co<\/td><\/td>1920<\/td>56442<\/td>No Value<\/td>Planimeter<\/td>0.0<\/td>No Value<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-482<\/td>MHF-D14<\/td>0<\/td>\n<\/tr>\n
J. Halden & Co., Ltd.<\/td>Halden Calculex<\/td>1925<\/td><\/td>UK<\/td>Circular<\/td>6.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-268<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
J. Halden & Co., Ltd.<\/td>Halden Calculex<\/td>1925<\/td><\/td>UK<\/td>Circular<\/td>6.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-786<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
J. M. Spitzglass<\/td>Spitzglass Slide Rule and Flow Computer<\/td>1918<\/td><\/td>USA<\/td>Special<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-436<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
James Farrow & Son<\/td>Pilot Ballon Slide Rule, Mark IV<\/td>0<\/td>2652\/53<\/td>UK<\/td>Special<\/td>60.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-487<\/td>MHF-D14<\/td>0<\/td>\n<\/tr>\n
Jones Metabolism Equipment Co,<\/td>Metabolic Rate SLide Rule<\/td>0<\/td><\/td>USA<\/td>Special<\/td>27.5<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-813<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Kesling Pocket Adder Company<\/td>Kes-Add Pocket Adder<\/td>1950<\/td><\/td>USA<\/td>Addometer<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-472<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>1744B Wm Cox Duplex, Dual Slide Chissel Point<\/td>1900<\/td>9 side<\/td>Germany<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-114<\/td>Cabinet<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4010 Stima Addiator<\/td>1952<\/td>29577<\/td>Switzerland<\/td>Additator<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-271<\/td>Cabinet<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4012 Thacher\u2019s Calculating Instrument<\/td>0<\/td>3980<\/td>UK<\/td>Special<\/td>46.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-668<\/td>Top Flat Files<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4017 Sperry’s Pocket Calculator<\/td>1941<\/td>S714<\/td>USA<\/td>Circular<\/td>4.3<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-266<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4031 Mannheim<\/td>1923<\/td>193 end<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-006<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4031 Mannheim<\/td>1924<\/td>92607<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-007<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4031 Mannheim<\/td>1924<\/td>95490<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-008<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4031 Mannheim<\/td>1925<\/td>97196<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-009<\/td>Cabinet<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4031F Mannheim<\/td>1912<\/td>34 end<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-003<\/td>Cabinet<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4031F Mannheim<\/td>1915<\/td>32 end<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-005<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4031F Mannheim<\/td>1915<\/td>541 end<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-004<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4032 Mannheim (Chisel Point Magnifier)<\/td>1900<\/td>2 72 end<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-001<\/td>Cabinet<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4032 Mannheim (Magnifier)<\/td>1906<\/td>45 end<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-002<\/td>Cabinet<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4035 Mannheim<\/td>1915<\/td>395 end<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-790<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4035 Mannheim<\/td>1915<\/td>451 end<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-011<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4035 Mannheim<\/td>1915<\/td>30 end<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-010<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4035 Mannheim Dual-line Cursor<\/td>1909<\/td>106+ end<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-596<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4041 Mannheim<\/td>1914<\/td>3 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-015<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4041 Mannheim<\/td>1914<\/td>280 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-013<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4041 Mannheim<\/td>1914<\/td>217 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-014<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4041 Mannheim<\/td>1914<\/td>606 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-595<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4041 Mannheim (Metal Cursor)<\/td>1915<\/td>53 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-016<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4041 Mannheim, No Model No <\/td>1928<\/td>196998 T C Lewis<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-539<\/td>Rolltop<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4041F Mannheim<\/td>1914<\/td>610 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-012<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4041F Mannheim, No Model No.<\/td>1914<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-857<\/td>MHF-D1<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4045 Mannheim<\/td>1922<\/td>26 End<\/td>USA<\/td>Linear<\/td>40.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-041<\/td>MHF-D11<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4045 Mannheim<\/td>1922<\/td>85 End<\/td>USA<\/td>Linear<\/td>40.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-042<\/td>MHF-D11<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4045 Mannheim<\/td>1922<\/td>35 End<\/td>USA<\/td>Linear<\/td>40.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-040<\/td>MHF-D7<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4045 Mannheim<\/td>1922<\/td>31 end<\/td>USA<\/td>Linear<\/td>40.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-545<\/td>MHF-D11<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4045 Mannheim, No Model No.<\/td>1913<\/td>26 end<\/td>USA<\/td>Linear<\/td>40.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-864<\/td>MHF-D11<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4051 Mannheim<\/td>1914<\/td>195 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-044<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4051 Mannheim<\/td>1914<\/td>198 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-043<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4051 Mannheim<\/td>1922<\/td>549 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-849<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4051 Mannheim<\/td>1922<\/td>54 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-045<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4051 Mannheim<\/td>1922<\/td>5 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-046<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4051 Mannheim, No Model No.<\/td>1909<\/td>22 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-047<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4051 Mannheim, No Model No.<\/td>1909<\/td>8 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-862<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053 Polyphase Mannheim<\/td>1909<\/td>86X end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-052<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053 Polyphase Mannheim<\/td>1910<\/td>571 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-051<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-2 Polyphase Mannheim<\/td>1914<\/td>60 end<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-048<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-2 Polyphase Mannheim<\/td>1914<\/td>959 end – Conrad Shure<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-597<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-2 Polyphase Mannheim<\/td>1922<\/td>11 end<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-049<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-3 Polyphase Mannheim<\/td>1912<\/td>794 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-053<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-3 Polyphase Mannheim<\/td>1913<\/td>106x end, Ed Chamberlian<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-054<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-3 Polyphase Mannheim<\/td>1921<\/td>317 X end & 12 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-056<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-3 Polyphase Mannheim<\/td>1921<\/td>862 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-565<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-3 Polyphase Mannheim<\/td>1921<\/td>21 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-057<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-3 Polyphase Mannheim<\/td>1921<\/td>114 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-058<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-3 Polyphase Mannheim, Metal Cursor<\/td>1915<\/td>386<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-055<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-3F Polyphase Mannheim<\/td>1922<\/td>427x end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-059<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-5 Polyphase Mannheim<\/td>1921<\/td>2? end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-553<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-5 Polyphase Mannheim<\/td>1921<\/td>41 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-538<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4053-5 Polyphase Mannheim<\/td>1958<\/td>480009<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-106<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4054 Favorite<\/td>1914<\/td>429 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-092<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4054 Favorite<\/td>1914<\/td>623 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-091<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4054 Polyphase Mannheim<\/td>1948<\/td>446303<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-096<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4055 Favorite Mannheim<\/td>1936<\/td>524406<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-093<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4055 Favorite Mannheim<\/td>1937<\/td>625594<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-094<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4056 Favorite Mannheim<\/td>1949<\/td>758469<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-095<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4056 Favorite Mannheim Type 1<\/td>1922<\/td>63 End<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-548<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058 Mannheim Student’s<\/td>1915<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-590<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058 Mannheim Student’s<\/td>1922<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-021<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058 Mannheim Student’s<\/td>1922<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-022<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058C Beginner’s<\/td>1941<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-024<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058C Beginner’s<\/td>1941<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-025<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058C Beginner’s<\/td>1941<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-023<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058D Beginner\u2019s<\/td>1942<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-549<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058W Mannheim Beginner’s<\/td>1934<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-026<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058W Mannheim Beginner’s<\/td>1943<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-029<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058W Mannheim Beginner’s<\/td>1943<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-027<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058W Mannheim Beginner’s<\/td>1943<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-028<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058W Mannheim Beginner’s<\/td>1943<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-585<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4058W Mannheim Beginner’s<\/td>1959<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-589<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4059 Beginner’s Slide Rule<\/td>1939<\/td><\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-273<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4061 Polyphase Trig<\/td>1916<\/td>81 end<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-588<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4061T Polyphase Trig<\/td>1916<\/td>28 end<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-110<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4065T Polyphase Trig<\/td>1916<\/td>89 end<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-112<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4068 Duplex<\/td>1906<\/td>9 end<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-111<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4070 Duplex Slide Rule, Chisel Point<\/td>1909<\/td>21 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-847<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4070-3 Polyphase Trig<\/td>1939<\/td>705222<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-150<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4070-3 Polyphase Trig<\/td>1952<\/td>889486 Arthur I. McRae<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-149<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4071 Polyphase<\/td>1915<\/td>107 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-113<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4071 Polyphase (Clamshell Cursor)<\/td>1912<\/td>51 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-873<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4071-3 Polyphase Decitrig<\/td>1944<\/td>106905<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-151<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4071-3 Polyphase Decitrig<\/td>1946<\/td>292228<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-152<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4071-3S Polyphase Decitrig<\/td>1958<\/td>186059<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>1<\/td>1<\/td>MHF-153<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4071T Polyphase Trig<\/td>1915<\/td>82 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-116<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4071T Polyphase Trig (Clamshell Cursor)<\/td>1912<\/td>77 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-115<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4071T Polyphase Trig (Column Cursor)<\/td>1913<\/td>3 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-829<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4071T Polyphase Trig (Column Cursor)<\/td>1914<\/td>99 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-117<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4078 Duplex Slide Rule, Chisel Point<\/td>1903<\/td>7 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-828<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4080-3 Log Log Trig<\/td>1935<\/td>559197<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-182<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4080-3 Log Log Trig<\/td>1946<\/td>296511<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-567<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4080-3 Log Log Trig<\/td>1950<\/td>669436<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-183<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4080-5 Log Log Trig<\/td>1946<\/td>317656<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-209<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4081-3 Log Log Decitrig<\/td>1949<\/td>690721<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-187<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4081-3 Log Log Decitrig<\/td>1955<\/td>940854<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-789<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4081-3 Log Log Decitrig<\/td>1955<\/td>859163<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-188<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4081-5 Log Log Decitrig<\/td>1954<\/td>976246<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-210<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4081-5 Log Log Decitrig<\/td>1955<\/td>5156<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-211<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4081-5 Log Log Decitrig Teaching<\/td>1954<\/td><\/td>USA<\/td>Linear<\/td>198.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>1<\/td>MHF-819<\/td>Wall<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4082-3 Radio Special<\/td>1940<\/td>867096<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-258<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4082-3 Radio Special<\/td>1940<\/td>834533 Naval TR. School 299<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-257<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4083 Polyphase (Column Cursor)<\/td>1915<\/td>42 End<\/td>USA<\/td>Linear<\/td>40.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-118<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4083-3 Log Log Vector<\/td>1946<\/td>257986<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>1<\/td>MHF-202<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4083-3 Log Log Vector<\/td>1949<\/td>534971<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-570<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4083-5 Log Log Vector<\/td>1943<\/td>945538<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-213<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4083T Polyphase<\/td>1915<\/td>10 End<\/td>USA<\/td>Linear<\/td>40.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-863<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4085A<\/td>1925<\/td>Early w\/ 4031 sn 97196<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-558<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4085B<\/td>1922<\/td>Early w\/ N4053-2 68048<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-550<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4085B<\/td>1922<\/td>Early w\/ N4053-3F 472x<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-551<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4085C<\/td>1914<\/td>On 4092 Column Cursor<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-555<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4085C<\/td>1914<\/td>On 4087 Column Cursor<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-554<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4087 Polyphase<\/td>1916<\/td>41 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>0<\/td>1<\/td>0<\/td>MHF-121<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4087 Polyphase<\/td>1916<\/td>42 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-860<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4087 Polyphase<\/td>1916<\/td>41 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>0<\/td>1<\/td>0<\/td>MHF-120<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4087 Polyphase<\/td>1916<\/td>43 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-161<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4087 Polyphase (Column Cursor)<\/td>1914<\/td>11 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-119<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4087T Polyphase (Clamshell Cursor)<\/td>1916<\/td>27 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>0<\/td>1<\/td>0<\/td>MHF-780<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4087T Polyphase (Metal Cursor)<\/td>1915<\/td>26 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>0<\/td>1<\/td>0<\/td>MHF-861<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-1 Polyphase<\/td>1922<\/td>93 end<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-124<\/td>MHF-D4<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-1 Polyphase<\/td>1924<\/td>13 end<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-125<\/td>MHF-D4<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-1 Polyphase<\/td>1929<\/td>221666<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-572<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-1 Polyphase<\/td>1929<\/td>224775<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-127<\/td>MHF-D4<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-1 Polyphase<\/td>1929<\/td>191776<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-126<\/td>MHF-D4<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-1 Polyphase<\/td>1929<\/td>298444<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-129<\/td>MHF-D4<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-1 Polyphase<\/td>1933<\/td>362571<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-128<\/td>MHF-D4<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-2 Polyphase<\/td>1928<\/td>179874<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-132<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-2 Polyphase<\/td>1928<\/td>38 end<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-274<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-2 Polyphase<\/td>1929<\/td>241354<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-573<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-2 Polyphase (Column Cursor)<\/td>1914<\/td>70 end<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-130<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-2 Polyphase (Metal Cursor)<\/td>1915<\/td>63 end<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-131<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-3 Polyphase<\/td>1921<\/td>593 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-574<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-3 Polyphase<\/td>1923<\/td>77733<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-138<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-3 Polyphase<\/td>1925<\/td>77086<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-136<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-3 Polyphase (Column Cursor)<\/td>1914<\/td>31 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-134<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-3 Polyphase (Column Cursor)<\/td>1915<\/td>88 x end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-133<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-3 Polyphase (I-Beam Cursor)<\/td>1938<\/td>382044<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-137<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-3 Polyphase (Metal Cursor)<\/td>1915<\/td>165 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>1<\/td>MHF-135<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-5 Polyphase<\/td>1921<\/td>11 End<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-139<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-5 Polyphase<\/td>1921<\/td>44 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-140<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-5 Polyphase<\/td>1921<\/td>63 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-575<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4088-5 Polyphase<\/td>1923<\/td>54790<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>1<\/td>MHF-607<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4090-3 Log Log Trig<\/td>1934<\/td>470428<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-178<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4091-3 Log Log DeciTrig<\/td>1933<\/td>456584<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-179<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4091-3 Log Log DeciTrig<\/td>1934<\/td>474048<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-180<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4091-3 Log Log DeciTrig, (I Beam)<\/td>1934<\/td>455753<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-181<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092 Log Log<\/td>1914<\/td>86 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-169<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092 Log Log<\/td>1921<\/td>187 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-167<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092 Log Log<\/td>1921<\/td>131 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-166<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092 Log Log<\/td>1921<\/td>79 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-168<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092 Log Log (Clamshell Cursor)<\/td>1913<\/td>142 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-163<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092 Log Log (Clamshell Cursor)<\/td>1913<\/td>19x end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-162<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092 Log Log (Column Cursor)<\/td>1914<\/td>141 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-164<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092 Log Log (Column Cursor)<\/td>1914<\/td>21 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-165<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092-3 Log Log<\/td>1922<\/td>8013<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-174<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092-3 Log Log<\/td>1922<\/td>8990 24S end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-170<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092-3 Log Log<\/td>1923<\/td>130851<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-172<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092-3 Log Log<\/td>1925<\/td>118377<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-176<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092-3 Log Log<\/td>1936<\/td>339820<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-171<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092-3 Log Log<\/td>1936<\/td>405149<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-175<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092-3 Log Log<\/td>1936<\/td>504659<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-177<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092-3 Log Log (Tabbed Cursor)<\/td>1936<\/td>400616<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-173<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4092-5 Log Log<\/td>1923<\/td>62988<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>0<\/td>1<\/td>0<\/td>MHF-205<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4093-3 Log Log Vector<\/td>1935<\/td>521109<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-200<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4093-3 Log Log Vector<\/td>1936<\/td>548842<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-201<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4094 Merchant’s<\/td>1935<\/td>561521<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-228<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4094 Merchant’s<\/td>1950<\/td>590046<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-229<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4095 Merchant’s<\/td>1921<\/td>14 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-235<\/td>MHF-D9<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4095 Merchant’s<\/td>1921<\/td>2 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-796<\/td>MHF-D9<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4095-1 Merchant’s<\/td>1927<\/td>130339<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-234<\/td>MHF-D9<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4095-3 Merchant’s<\/td>1928<\/td>253609<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-237<\/td>MHF-D9<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4095-5 Merchant\u2019s<\/td>1922<\/td>55071<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-826<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4097B Merchant’s Ever-There<\/td>1943<\/td>64232<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-084<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4097B Merchant’s Ever-There<\/td>1954<\/td>033393<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-085<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4097C Mannheim Ever-There<\/td>1943<\/td>009962<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-087<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4097C Mannheim Ever-There<\/td>1943<\/td>27705<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-086<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4097D Mannheim Ever-There<\/td>1944<\/td>019432 John W. Futral<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-089<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4097D Mannheim Ever-There<\/td>1944<\/td>89125<\/td>USA<\/td>Linear<\/td>12.5<\/td>Paper<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MIT<\/td>MIT<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4097D Mannheim Ever-There<\/td>1946<\/td>146320 U.S. Electrical Motors Inc.<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-090<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4097D Mannheim Ever-There<\/td>1954<\/td>105130<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-088<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4098 Mannheim “EverThere”<\/td>1935<\/td>18425<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-080<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4098 Mannheim “EverThere”<\/td>1935<\/td>32162<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-079<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4098A Mannheim “Pocket”<\/td>1943<\/td>95097<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-082<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4098A Mannheim “Pocket”<\/td>1943<\/td>48232<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-083<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4098A Mannheim “Pocket”<\/td>1943<\/td>77180<\/td>USA<\/td>Linear<\/td>12.7<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-797<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4100 Mannheim Stadia<\/td>1957<\/td>230106<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-239<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4100 Mannheim Stadia<\/td>1957<\/td>290831<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-240<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4100 Mannheim Stadia<\/td>1958<\/td>433578<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-241<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4101 Mannheim Stadia<\/td>1914<\/td>46 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-243<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4101 Mannheim Stadia<\/td>1923<\/td>130 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-244<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4102 Surveyor’s<\/td>1923<\/td>62 end<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>0<\/td>1<\/td>0<\/td>MHF-246<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4102 Surveyor’s<\/td>1925<\/td>41498<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-247<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4104 Special Production Slide Rule of Military Use<\/td>1955<\/td>044175<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-291<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4105 Webb\u2019s Stadia Slide Rule<\/td>1922<\/td><\/td>USA<\/td>Special<\/td>32.2<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-846<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4108 Military Slide Rule<\/td>1945<\/td>229213<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-784<\/td>MHF-D13<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4110 Power Trig<\/td>1940<\/td>800046<\/td>USA<\/td>Linear<\/td>33.5<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-099<\/td>MHF-D13<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4133 Mannheim Roy Lance Electrican’s<\/td>1922<\/td>347 End<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-254<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4135 Power Computing<\/td>1932<\/td>361628<\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-260<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4138 Morrison Radio Engineer\u2019s Slide Rule<\/td>1939<\/td>659861<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-800<\/td>MHF-D10<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4139 Cooke Radio Rule<\/td>1946<\/td>313985<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-249<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4139 Cooke Radio Rule<\/td>1948<\/td>496748<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-252<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4139 Cooke Radio Rule<\/td>1957<\/td>363799<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-250<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4139 Cooke Radio Rule<\/td>1958<\/td>452405<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-251<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4139 Cooke Radio Rule<\/td>1962<\/td>775559<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-584<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4141 Hudson’s Horse Power Computing Scale<\/td>1913<\/td>Stanley London<\/td>UK<\/td>Special<\/td>10.7<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-544<\/td>Cabinet<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4150-1 (9050-1) Mannheim Merchant’s<\/td>1954<\/td>009583<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-227<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4150-1 Mannheim Merchant’s<\/td>1954<\/td>002878<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-225<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4150-1 Mannheim Merchant’s Doric<\/td>1954<\/td>4293 Pat Pend<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-224<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4150-1 Mannheim Merchant’s Doric<\/td>1956<\/td>19071827<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-798<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4153-1 Polyphase Mannheim<\/td>1959<\/td>064995<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-038<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4158 K-12 Prep<\/td>1961<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-592<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4158 K-12 Prep<\/td>1961<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-034<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4158 K-12 Prep<\/td>1961<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-591<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4160 Chemist’s Slide Rule<\/td>1923<\/td>18270<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-262<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4160 Chemist’s Slide Rule<\/td>1932<\/td>355964<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-261<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4160 Chemist’s Slide Rule<\/td>1932<\/td>284731<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>1<\/td>MHF-636<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4161-1 Polyphase Mannheim<\/td>1954<\/td>024555<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-108<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4161-1 Polyphase Mannheim<\/td>1954<\/td>40220<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-109<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4161-3 Mannheim<\/td>1954<\/td>023720<\/td>USA<\/td>Linear<\/td>25.0<\/td>Paper<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-078<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4161-3 Mannheim<\/td>1954<\/td>025172<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-077<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4168 Polyphase Doric<\/td>1954<\/td>009990<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-146<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4168 Polyphase Doric<\/td>1958<\/td>424114<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-145<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4175 Kurtz Psychrometic<\/td>1938<\/td><\/td>USA<\/td>Linear<\/td>23.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-263<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4181-1 Log Log Decitrig<\/td>1954<\/td>29473<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-158<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4181-1 Log Log Decitrig<\/td>1955<\/td>029974<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-157<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4181-1C Log Log Dectrig<\/td>1954<\/td>013986<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-159<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4181-3 Log Log Decitrig<\/td>1954<\/td>015574<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-196<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4181-3 Log Log Decitrig<\/td>1954<\/td>001578<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-195<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4183B Belt Carrier<\/td>0<\/td><\/td>USA<\/td>No Value<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-282<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4185-17<\/td>0<\/td><\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-280<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4185-7<\/td>0<\/td><\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-279<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4185B<\/td>0<\/td>w\/ N4053-3 043255<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-552<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4185B<\/td>0<\/td><\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-277<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4185B<\/td>0<\/td><\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-276<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4185B<\/td>0<\/td><\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-275<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4185B<\/td>0<\/td>w\/ N4053-3 012841<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-587<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4185C<\/td>0<\/td>w\/ N4081-3 519945<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-569<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4185C<\/td>0<\/td><\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-278<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>4280 Amsler Intergrator<\/td>0<\/td>1196<\/td>USA<\/td>Planimeter<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-818<\/td>Top Flat Files<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>6-C-1 US Navy (4168 Projection)<\/td>1957<\/td><\/td>USA<\/td>Linear<\/td>20.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-283<\/td>MHF-D12<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>62000 Compensating Polar<\/td>1962<\/td>95 229<\/td>Germany<\/td>Planimeter<\/td>260.2<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-484<\/td>MHF-D14<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1100 Deci-Lon<\/td>1962<\/td>013952<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-216<\/td>MHF-D8<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1100 Deci-Lon<\/td>1962<\/td>28536<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-571<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1100 Deci-Lon<\/td>1962<\/td>198975<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-557<\/td>MHF-D8<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1100 Deci-Lon<\/td>1962<\/td>134429<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-218<\/td>MHF-D8<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1100 Deci-Lon<\/td>1962<\/td>096252<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-217<\/td>MHF-D8<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1100 Deci-Lon (no bars)<\/td>1966<\/td>236464<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-219<\/td>MHF-D8<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1100 Deci-Lon (no bars)<\/td>1966<\/td>244573<\/td>USA<\/td>Linear<\/td>25.0<\/td>Paper<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-220<\/td>MHF-D8<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1100 Deci-Lon (no bars)<\/td>1966<\/td>262936<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-221<\/td>MHF-D8<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1130 Deci-Lon<\/td>1961<\/td>036452<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-215<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1130 Deci-Lon<\/td>1961<\/td>022454<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-214<\/td>MHF-D8<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1200 Log Log Decitrig<\/td>1959<\/td>480149<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-212<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1210 Log Log Decitrig<\/td>1956<\/td>270158<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-192<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1210 Log Log Decitrig<\/td>1958<\/td>320384<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-191<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1251 Jet-Log<\/td>1962<\/td>119342<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-198<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1256 Jet-Log<\/td>1966<\/td>124832<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-199<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1256 Log Log Duplex Decitrig – Old 4181-3<\/td>1962<\/td>034165<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-197<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1282 (4181-1C) Log Log Decitrig<\/td>1965<\/td>073387<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-160<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1318 Log Log Trig<\/td>1963<\/td>850517<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-186<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1343 Old 4083-3 Log Log Vector<\/td>1962<\/td>670347<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-810<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1400 Analon<\/td>1966<\/td>004661<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-223<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1434 Log Log Vector<\/td>1962<\/td>460048<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-204<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1460 Cooke Radio Rule<\/td>1962<\/td>790157<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-253<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1486 (4143) Kissam Stadia<\/td>1962<\/td>398915<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-242<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1497 Polyphase Decitrig<\/td>1959<\/td>540106<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-154<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1555 Polyphase Doric<\/td>1966<\/td>037383<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-594<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1565 GP12<\/td>1967<\/td>033613<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-222<\/td>MHF-D8<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1576 (4161-3) Mannheim<\/td>1954<\/td>008308<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-076<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1586 (4161-1) Manheim<\/td>1962<\/td>019198<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-075<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1608 Polyphase Mannheim<\/td>1960<\/td>520285<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-556<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1608 Polyphase Mannheim<\/td>1968<\/td>200089<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-107<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1617 (4053-3) Polyphase Mannheim<\/td>1962<\/td>201058<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-069<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1622 (4053-3, 68 1617) Polyphase Mannheim<\/td>1962<\/td>941324<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-070<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1643 (4153-1C) Polyphase Mannheim<\/td>1962<\/td>018474<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-039<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1749 Mannheim Merchant’s<\/td>1966<\/td>290013<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-536<\/td>Top Flat Files<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1754 Mannheim Merchant’s<\/td>1964<\/td>970082<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-233<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1775 Merchant’s<\/td>1965<\/td>300031<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-230<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1775 Merchant’s<\/td>1965<\/td>400370<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-231<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1791 (4150-1) Mannheim Merchant’s<\/td>1962<\/td>004929<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-226<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1892 K-12 Prep<\/td>1972<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-035<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1892 K-12 Prep<\/td>1972<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-586<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1892 K-12 Prep Desk<\/td>1972<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-037<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1892 K-12 Prep Desk<\/td>1972<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-036<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 1960 Jet-Log Projection <\/td>1967<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-875<\/td>MHF-D12<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68 2233 (4185-17) Magnifier<\/td>1966<\/td><\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-281<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>68-1261 Jet-Log Jr.<\/td>1973<\/td>1377788<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-830<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>69 1955 Deci-Lon Projection<\/td>1967<\/td><\/td>USA<\/td>Linear<\/td>20.0<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-284<\/td>MHF-D12<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>7L Indicator Glass<\/td>0<\/td>x3<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td><\/td><\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>8858 Mannheim Beginner’s WWII special 1944<\/td>1942<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-033<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>8858 Mannheim Beginner’s WWII special 1944<\/td>1942<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-032<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>8858 Mannheim Beginner’s WWII special 1944<\/td>1942<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-635<\/td>Wright Museum<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>9061-1 Doric Mannheim<\/td>1949<\/td>7486<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-074<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>9068 Doric Plastic Polyphase<\/td>1947<\/td>056542<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-144<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>9068 Doric Plastic Polyphase<\/td>1952<\/td>4823<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-143<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>9071-3 Doric Polyphase Decitrig<\/td>1952<\/td>013371<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-155<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>9071-3 Doric Polyphase Decitrig<\/td>1952<\/td>0012930<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-156<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>American \/ Favorite case<\/td>1900<\/td>end 1264<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-856<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>American Mannheim<\/td>0<\/td>97 E end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-098<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>American Mannheim<\/td>0<\/td>63 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-097<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Beatley I-Q Slide Rule<\/td>1922<\/td><\/td>USA<\/td>Special<\/td>19.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-264<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Belleville Spring Washer Computer<\/td>1967<\/td><\/td>USA<\/td>Special<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-593<\/td>MHF-D8<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Brick-O-Meter, Mackensen C. Co. Inc.<\/td>1938<\/td><\/td>USA<\/td>Special<\/td>24.2<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-265<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Brick-O-Meter, Mackensen C. Co. Inc. Instructions<\/td>1938<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-702<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Celcon Doric (68 1550)<\/td>1962<\/td>620214<\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-147<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Celcon Doric (68 1550)<\/td>1972<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-148<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Cooke Radio Rule, No Number<\/td>1940<\/td>858377<\/td>USA<\/td>Special<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-825<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>D Slide Rule Indicator<\/td>1922<\/td><\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td><\/td><\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>D4053-3 Polyphase Mannheim Decitrig<\/td>1957<\/td>320464<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-071<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>D4053-3 Polyphase Mannheim Decitrig<\/td>1957<\/td>320221<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-072<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>D68 1617 Polyphase Mannheim Decitrig<\/td>1960<\/td>660040<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-123<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>D68 1617 Polyphase Mannheim Decitrig<\/td>1965<\/td>030078<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-073<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>EL Slide Rule Indicator<\/td>0<\/td>On 4041 TCL<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td><\/td><\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>EL Slide Rule Indicator<\/td>0<\/td><\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td><\/td><\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>EL Slide Rule Indicator<\/td>0<\/td>On 4051<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td><\/td><\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>EL Slide Rule Indicator<\/td>0<\/td><\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>1<\/td><\/td><\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>F 4236 Compensating Polar E<\/td>1954<\/td>48799 E 1647<\/td>USA<\/td>Planimeter<\/td>217.8<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-484<\/td>MHF-D14<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Henning Pocket Recorder<\/td>0<\/td>15<\/td>USA<\/td>Other<\/td>0.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-777<\/td>Bookcase-2<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>I Slide Rule Indicator, Column Cursor in pieces<\/td>1913<\/td>from 4092 86 end<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Metal<\/td>1<\/td>0<\/td>1<\/td>1<\/td>ISRM<\/td>ISRM<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>IL Slide Rule Indicator<\/td>1932<\/td>In IL Box<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Plastic<\/td>1<\/td>0<\/td>1<\/td>1<\/td><\/td><\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>IL Slide Rule Indicator<\/td>1932<\/td>In IL Box<\/td>USA<\/td>Magnifier<\/td>0.0<\/td>Plastic<\/td>1<\/td>0<\/td>1<\/td>0<\/td><\/td><\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>IL Slide Rule Indicator, I Beam in pieces<\/td>1933<\/td>from 4092 86 end<\/td>USA<\/td>No Value<\/td>0.0<\/td>Plastic<\/td>1<\/td>0<\/td>1<\/td>0<\/td><\/td><\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Instruction Manual Analon Eng-Sci Analy Slide Rule<\/td>1967<\/td>Analon Box<\/td>USA<\/td>Manual<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-756<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Instructions for using Thacher\u2019s Calculating Instrument<\/td>1914<\/td>3980<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-820<\/td>Thacher Box<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Lumber Slide Rule<\/td>1900<\/td>1 end<\/td>USA<\/td>Special<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-803<\/td>MHF-D13<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4041 Mannheim<\/td>1922<\/td>026576<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-017<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4041 Mannheim<\/td>1932<\/td>338516<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-018<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4041 Mannheim<\/td>1933<\/td>436830<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-020<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4041 Mannheim<\/td>1936<\/td>549701<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-019<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-2 Polyphase Mannheim<\/td>1922<\/td>57609<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-566<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-2 Polyphase Mannheim<\/td>1922<\/td>68048<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-050<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3 Polyphase Mannheim<\/td>1927<\/td>211917<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-060<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3 Polyphase Mannheim<\/td>1932<\/td>323979<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-101<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3 Polyphase Mannheim<\/td>1933<\/td>383058<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-063<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3 Polyphase Mannheim<\/td>1933<\/td>350478<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-061<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3 Polyphase Mannheim<\/td>1933<\/td>386745<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-062<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3 Polyphase Mannheim<\/td>1940<\/td>859366, John Keller<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-122<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3 Polyphase Mannheim<\/td>1940<\/td>802937<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-065<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3 Polyphase Mannheim<\/td>1943<\/td>012841<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-066<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3 Polyphase Mannheim<\/td>1944<\/td>043255<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-064<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3 Polyphase Mannheim<\/td>1944<\/td>19676\/19728<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-102<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3 Polyphase Mannheim<\/td>1948<\/td>368511<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-100<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3 Polyphase Mannheim<\/td>1952<\/td>753791<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-067<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-3F Polyphase Mannheim<\/td>1922<\/td>16355, 117 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-068<\/td>MHF-D2<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-5 Polyphase Mannheim<\/td>1931<\/td>355905<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-103<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-5 Polyphase Mannheim<\/td>1950<\/td>651936<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-105<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-5 Polyphase Mannheim<\/td>1950<\/td>644999<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-104<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4053-5 Polyphase Mannheim, Decimal Keeper Cursor<\/td>1929<\/td>295859<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-866<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4058W Mannheim Beginner’s<\/td>1959<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-030<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4058W Mannheim Beginner’s<\/td>1959<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-031<\/td>MHF-D1<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4080-3 Log Log Trig<\/td>1947<\/td>469618<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-185<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4080-3 Log Log Trig<\/td>1950<\/td>625153<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-184<\/td>MHF-D5<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4080-5 Log Log Trig<\/td>1946<\/td>669614<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-802<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4081-3 Log Log Decitrig<\/td>1949<\/td>491367<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-190<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4081-3 Log Log Decitrig<\/td>1949<\/td>519945<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-568<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4081-3 Log Log Decitrig<\/td>1951<\/td>716229<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-189<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4083-3 Log Log Vector<\/td>1951<\/td>738970<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-203<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4088-5 Polyphase<\/td>1944<\/td>170279<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-141<\/td>MHF-D11<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4092-5 Log Log<\/td>1931<\/td>309988<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-206<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4092-5 Log Log<\/td>1934<\/td>468477<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-208<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4092-5 Log Log<\/td>1934<\/td>468499<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-207<\/td>MHF-D7<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4095 Merchant’s<\/td>1921<\/td>62 end<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-236<\/td>MHF-D9<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4096 Mannheim Merchant’s<\/td>1950<\/td>698326<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-535<\/td>Top Flat Files<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4096 Mannheim Merchant’s<\/td>1960<\/td>629831<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-534<\/td>Top Flat Files<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4096M Mannheim Merchant’s<\/td>1953<\/td>896800<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-232<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4100 Mannheim Stadia<\/td>1954<\/td>768599<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-238<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4101 Mannheim Stadia<\/td>1933<\/td>160065<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-848<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4101 Mannheim Stadia<\/td>1942<\/td>964847<\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-245<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4133 Mannheim Roy Lance Electrican’s<\/td>1928<\/td>210019<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-255<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4133 Mannheim Roy Lance Electrican’s<\/td>1947<\/td>415945<\/td>USA<\/td>Linear<\/td>20.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-256<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N4238 Compensating Polar E\/M<\/td>1936<\/td>4576<\/td>Germany<\/td>Planimeter<\/td>283.6<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-483<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N9081-3 Doric Log Log Decitrig<\/td>1951<\/td>43448<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-193<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>N9081-3 Doric Log Log Decitrig<\/td>1954<\/td>17493<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-194<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>National Union Radio<\/td>1937<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-259<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>National Union Radio<\/td>1937<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>ISRM<\/td>ISRM<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Nordell Sewer Slide Rule<\/td>1940<\/td><\/td>USA<\/td>Special<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-827<\/td>MHF-D13<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>PL Slide Rule Indicator<\/td>0<\/td>In PL Box<\/td>USA<\/td>Magnifier<\/td>0<\/td>Plastic<\/td>1<\/td>0<\/td>1<\/td>0<\/td><\/td><\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>PL Slide Rule Indicator<\/td>0<\/td><\/td>USA<\/td>Magnifier<\/td>0<\/td>Plastic<\/td>1<\/td>0<\/td>1<\/td>0<\/td><\/td><\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Reymond Leather Calculator<\/td>1926<\/td>F308<\/td>USA<\/td>Special<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-546<\/td>MHF-D12<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>S.P. 4055 Favorite Mannheim<\/td>1937<\/td>732632<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-809<\/td>MHF-D3<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Short Base Triangulation<\/td>1945<\/td><\/td>USA<\/td>Linear<\/td>50.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-248<\/td>MHF-D13<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Slide Rules Instruction Book<\/td>1973<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-836C<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Table, Graphical Firing, M12<\/td>1943<\/td><\/td>USA<\/td>Linear<\/td>40.2<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-471<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Table, Graphical Firing, M4<\/td>1942<\/td><\/td>USA<\/td>Linear<\/td>40.2<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-868<\/td>Top Flat Files<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>The Chemist\u2019s Duplex Slide Rule<\/td>1913<\/td>1048 kh, o, ca. kM.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-832<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>The Chemist\u2019s Duplex Slide Rule<\/td>1923<\/td>6679. S, o, ki.hC.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-833<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Tie Clip Silver<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>4.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-644<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Tie Tack<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>2.5<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-645<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Tie Tack<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>2.5<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-646<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>TimeSlide Calendar<\/td>1955<\/td><\/td>USA<\/td>Special<\/td>29.5<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-598<\/td>MHF-D10<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser<\/td>Unknown In\/A,DF-CF,CI,C-C,K\/CM S(dms)BLT<\/td>1949<\/td>434542<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-081<\/td>MHF-D3<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser \/ Acushnet Process Company<\/td>Young\u2019s Specific Gravity & Compound Cost Calculator<\/td>1913<\/td>50 End 31 Side<\/td>USA<\/td>Special<\/td>12.5<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-666<\/td>MHF-D13<\/td>1<\/td>\n<\/tr>\n
Keuffel & Esser \/ ECCO CO.<\/td>10000 Doric Polyphase<\/td>1946<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-142<\/td>MHF-D4<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>A Self Instruction Manual<\/td>1955<\/td>50007<\/td>USA<\/td>Manual<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-684<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>A slide rule with intellect and .. horse sense<\/td>1956<\/td>91264<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-744<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Catalog 8 Slide Rules<\/td>1967<\/td><\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-840<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Catalog Price List<\/td>1968<\/td>48 CT-70<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-839<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>College and School Catalog<\/td>1955<\/td><\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-804<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Cooke Radio Slide Rule A Suppl. Man.<\/td>1942<\/td>11,65502. K&E 4139, SN 313895<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-742<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Deci-Lon An Instruction Manual<\/td>1962<\/td>91008<\/td>USA<\/td>Manual<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-686<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Deci-Lon An Instruction Manual<\/td>1962<\/td>52387<\/td>USA<\/td>Manual<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-687<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Decimal Equivalents of Fractions \/ Calendar<\/td>1948<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-748<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Educational Supplies & Equipment<\/td>1966<\/td>15189-115K-45<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-679<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Elementary Instructions<\/td>1944<\/td>49124<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-727<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>How to Choose a Slide Rule<\/td>1940<\/td><\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-743<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>How To Take Care Of Your Slide Rule<\/td>1962<\/td>S14-5 3 copies<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-745<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Inst for Oper Ever-There Slide Rule No. 4097C<\/td>1936<\/td>12,059. S, cc,, yay. HM.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-760<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Instructions for Use of Log Log Duplex Slide Rule<\/td>1922<\/td>5009. ki, i, kh. cM.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-728<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Jetlog and Decitrig An Instruction Manual<\/td>1955<\/td>41604<\/td>USA<\/td>Manual<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-685<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Catalog 33th Edition<\/td>1909<\/td>Press of Rothacker & Schweizer<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-831<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Catalog 34th Edition<\/td>1913<\/td>L A Struigfield, Corning Cal<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-669<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Catalog 35th Edition<\/td>1915<\/td>The Dodd Co<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-670<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Catalog 36th Edition<\/td>1921<\/td><\/td>USA<\/td>Catalog<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-671<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Catalog 37th Edition<\/td>1927<\/td>Emile Tomlin<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-672<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Catalog 37th Edition<\/td>1927<\/td><\/td>USA<\/td>Catalog<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-799<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Catalog 38th Edition<\/td>1936<\/td>K. C. Fuller<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-673<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Catalog 39th Interim Ed War Catalog<\/td>1943<\/td>R. W. Phipps<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-674<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Catalog 40th Edition<\/td>1944<\/td>Copy No. 37075<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-675<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Catalog 42nd Edition<\/td>1954<\/td>Wm. C. Spinck, K&E Sales<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Hard Cover<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-676<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Catalog 42nd Edition, Part 1<\/td>1954<\/td>Schaeffer, Hooton & Wilson<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-677<\/td>Bookcase<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Catalog 43rd Edition, section Slide Rules Catalog 8 <\/td>1962<\/td><\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-678<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Price List, 37th Edition<\/td>1928<\/td><\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-703<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>K & E Price List, 42nd Edition<\/td>1959<\/td>38478<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-680<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Learning to Use the Slide Rule<\/td>1961<\/td>S24<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-764<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Learning to Use the Slide Rule<\/td>1961<\/td>S24-2<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-763<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Decitrig No. 4081<\/td>1942<\/td>7724<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-714<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Decitrig No. 4081<\/td>1945<\/td>12,473.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-708<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Decitrig No. 4081<\/td>1955<\/td>72536 see K&E 4181-3 015574<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-711<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Decitrig No. 4081<\/td>1955<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-710<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Decitrig No. 4081<\/td>1955<\/td>2310<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-709<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Decitrig No. 68 2047<\/td>1955<\/td>66992 in 68 1251 box<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-755<\/td>MHF-D6<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Decitrig No. 68 2047<\/td>1955<\/td>45670<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-713<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Decitrig No. 68 2047<\/td>1955<\/td>29244<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-724<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Decitrig No. N4081<\/td>1947<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-712<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Slide Rule<\/td>1926<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-704<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Slide Rule<\/td>1926<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-705<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Trig N4080-3 <\/td>1948<\/td>94542<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-707<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Trig No. 4080<\/td>1943<\/td>41097<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-706<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Duplex Vector No. N4083<\/td>1939<\/td>34204+Suppl & SRT Scale<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-726<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Log Log Vector Slide Rule<\/td>1930<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-725<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Merchants\u2019 (Calculating) Slide Rule<\/td>1915<\/td>1158. Ki, o, cy. HM.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-836<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Merchants\u2019 Pocket Slide Rule Instructions Manual No, 68 1791<\/td>1950<\/td>13215<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-762<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Merchants\u2019 Slide Rule 68 1775<\/td>1960<\/td>23096-36C-1.5<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-759<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Modern Polyphase No. 68 2061 Old 4187Y<\/td>1952<\/td>29872<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-739<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Pocket Slide Rule 4150-1 (Formerly 9050-1) Instructions<\/td>1950<\/td>34161<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-761<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Pocket Slide Rule 4150-1 Instructions<\/td>1950<\/td>63895<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-758<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Pocket Slide Rules – Brochure<\/td>1962<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-747<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Pocket Slide Rules – Brochure<\/td>1964<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-746<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Polyphase Duplex Decitrig No. 4071<\/td>1939<\/td>7241<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-720<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Polyphase Duplex Decitrig No. 4071<\/td>1939<\/td>7241<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-721<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Polyphase Duplex Decitrig No. 68 2055 Old No. 4187U<\/td>1962<\/td>7751<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-719<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Polyphase Duplex Decitrig No. 68 2059 Old No. 4187X<\/td>1947<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-722<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Polyphase No. 68 2063 Old 4187H<\/td>1954<\/td>41671<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-740<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Polyphase Slide Rule No. N4053<\/td>1944<\/td>60247 2ed<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-738<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Polyphase Slide Rule No. N4053<\/td>1944<\/td>79287<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-837<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Polyphase-Duplex Slide Rule<\/td>1913<\/td>1023. k, x, ca. h M.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-715<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Roylance Electrical Slide Rule<\/td>1913<\/td>1064. K9, cc, ca. hM.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-834<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Slide Rules & Calculating Instruments<\/td>1913<\/td>1030.ck. x, ca. sM<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-682<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Slide Rules & Calculating Instruments<\/td>1930<\/td>4653-3 o,cc, ki, hM.<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-681<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Slide Rules & Calculating Instruments<\/td>1942<\/td>93034<\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-683<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Slide Rules (Rev. Sept. 55)<\/td>1955<\/td><\/td>USA<\/td>Catalog<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-844<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>Suppl. Man. Cooke Radio No 4139<\/td>1942<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-741<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Ever-There Slide Rule No. 4097D<\/td>1947<\/td>12644<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-724<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Mannheim & Polyphase Slide Rules<\/td>1920<\/td>2465. cc,h,ks. sM.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-734<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Mannheim & Polyphase Slide Rules<\/td>1922<\/td>3158. a, y, kk. hM.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-733<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Mannheim and The Duplex Slide Rules<\/td>1909<\/td>965, h. c c. k. aM. El<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-716<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Mannheim and The Duplex Slide Rules<\/td>1909<\/td>965, h. c c. k. aM. El<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-717<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Mannheim and The Duplex Slide Rules<\/td>1909<\/td>1526. kk, i, ex. HM.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-838<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Mannheim Slide Rule<\/td>1938<\/td>43343<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-735<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Mannheim Slide Rule Complete Manual<\/td>1903<\/td>540-Ks-x-sy-hME., ed Chamberlain<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-730<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Mannheim Slide Rule Complete Manual<\/td>1917<\/td>1608. s, a, cm. sM.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-732<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Mannheim Slide Rule Complete Manual<\/td>1917<\/td>1416. k, k, cx. sM.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-731<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Mannheim Slide Rule Complete Manual<\/td>1917<\/td>1885. ch, o, co. sM.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-729<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Polar Planimeter<\/td>1915<\/td>1276. i, a, ch. cM.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-726<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Polyphase Duplex Slide Rule No. 4088<\/td>1938<\/td>60267-1940 SR 4088-3 382044<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-718<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Polyphase Slide Rule No. N4053<\/td>1944<\/td>6391<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-737<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The Roylance Electrical Slide Rule<\/td>1924<\/td>4552-2. C, s, yes. Chess.<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-835<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Keuffel & Esser Manual<\/td>The SRT Scale<\/td>1955<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-757<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Kolesch & Co.<\/td>Midget<\/td>1924<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-375<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Kontrolpribor<\/td>KL-1<\/td>1966<\/td><\/td>USSR<\/td>Circular<\/td>3.5<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-270<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Kontrolpribor<\/td>KL-1 JUBILEUM 1967<\/td>1967<\/td><\/td>USSR<\/td>Circular<\/td>3.5<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-269<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Lafayette<\/td>99-71029 VectorLog<\/td>1961<\/td>SS-2<\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-389<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Lafayette<\/td>F-428 Log Log Duplex Deci-Trig<\/td>1961<\/td>K.S-3<\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-388<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>10-B<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-333<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>10-B<\/td>1940<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-578<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>10-D Eureka Millwork Lumber Calculator<\/td>0<\/td><\/td>USA<\/td>Special<\/td>24.7<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-337<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>10-D Lawrence Lumber Calculator<\/td>0<\/td><\/td>USA<\/td>Special<\/td>24.7<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-336<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>409 U. S. Navy<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-340<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>8-B<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>19.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-331<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>8-B<\/td>1937<\/td><\/td>USA<\/td>Linear<\/td>19.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-332<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>8-L Copper Wire Selector<\/td>1946<\/td><\/td>USA<\/td>Special<\/td>16.5<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-338<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>B. F. Grizzle Instructions for Water Line Capacity Slide Rule<\/td>1944<\/td><\/td>USA<\/td>Manual<\/td>19.5<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-754<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>B.F. Grizzle Water Line Capacity<\/td>1944<\/td><\/td>USA<\/td>Special<\/td>19.5<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-339<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>DeYOE Slide Rule<\/td>0<\/td><\/td>USA<\/td>Special<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-344<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>Epperson TV Coverage Calculator<\/td>1952<\/td><\/td>USA<\/td>Special<\/td>24.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-343<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>Madison Speed Calculator<\/td>1947<\/td><\/td>USA<\/td>Special<\/td>17.8<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-342<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering<\/td>US Aviation Underwriters, Inc.<\/td>1944<\/td><\/td>USA<\/td>Linear<\/td>29.3<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>David Rance<\/td>David Rance<\/td>0<\/td>\n<\/tr>\n
Lawrence Engineering Service<\/td>Lawrence \u201cSecret Code\u201d Rule<\/td>1939<\/td><\/td>USA<\/td>Special<\/td>18.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-485<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Lightning Adding Machine<\/td><\/td>0<\/td><\/td>USA<\/td>Addometer<\/td>20.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-479<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Lutz<\/td>252 U.S.<\/td>1964<\/td>ss-9<\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-393<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
M. H. Mear<\/td>Gas Flow Calculator Model 3<\/td>0<\/td><\/td>UK<\/td>Special<\/td>19.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-526<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
Maurice Damien<\/td>Universal Ruler (Regle A Calculus)<\/td>1930<\/td><\/td>France<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-625<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Merchant Account<\/td>Simplex<\/td>0<\/td>11978<\/td>USA<\/td>Adding Machine<\/td>0.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-773<\/td>Workshop<\/td>0<\/td>\n<\/tr>\n
Monroe<\/td>Calculator Model K<\/td>1925<\/td><\/td>USA<\/td>Adding Machine<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-770<\/td>Workshop<\/td>0<\/td>\n<\/tr>\n
Monroe Manufacturing Co.<\/td>Monroe Slide Rule Pencil<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>7.4<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-647<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Moonstick Co.<\/td>Moonstick<\/td>2001<\/td><\/td>USA<\/td>Special<\/td>0.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-461<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Novotni<\/td>Feed Slide Rule<\/td>1955<\/td><\/td>USA<\/td>Special<\/td>25.5<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-446<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Novotni<\/td>Novotni Weight Rule<\/td>0<\/td><\/td>USA<\/td>Special<\/td>33.5<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-421<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Novotni<\/td>Paper Box Board Rule<\/td>0<\/td><\/td>USA<\/td>Special<\/td>16.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-424<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Novotni <\/td>Novotni Weight Slide Rule<\/td>1920<\/td><\/td>USA<\/td>Special<\/td>33.5<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-422<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Ohio State University<\/td>Slide Rule Manual<\/td>1947<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-749<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Otis-King<\/td>K 423\/414<\/td>1970<\/td>X4113<\/td>UK<\/td>Cylindrical<\/td>26.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-528<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Otis-King<\/td>L 430\/429<\/td>1923<\/td>A8302<\/td>UK<\/td>Cylindrical<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-529<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Otis-King<\/td>L 430\/429<\/td>1957<\/td>S6877<\/td>UK<\/td>Cylindrical<\/td>26.0<\/td>Metal<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-531<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Otis-King<\/td>L 430\/429<\/td>1969<\/td>T1415<\/td>UK<\/td>Cylindrical<\/td>26.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-537<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
Otis-King<\/td>L 430\/429<\/td>1974<\/td>B1230<\/td>UK<\/td>Cylindrical<\/td>26.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-530<\/td>MHF-D9<\/td>0<\/td>\n<\/tr>\n
P.I.C. \/ A. G. Thornton Ltd.<\/td>131 Electro<\/td>0<\/td><\/td>UK<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-398<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
P.I.C. \/ A. G. Thornton Ltd.<\/td>172 \/PC17<\/td>0<\/td><\/td>UK<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-616<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Perrygraf Corp.<\/td>Doty Scientific Vector Impedance Calculator<\/td>1971<\/td><\/td>USA<\/td>Special<\/td>21.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-632<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Perrygraf Corp.<\/td>Hewlett-Packard Packard Vector Impedance Calculator<\/td>1966<\/td>7 each<\/td>USA<\/td>Special<\/td>21.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-429<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Perrygraf Corp.<\/td>Varian NMR Correlator<\/td>1973<\/td><\/td>USA<\/td>Special<\/td>21.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-633<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Pery Graf Corp.<\/td>Roebling “Traction Steel” Elevator Rope Calculator<\/td>1944<\/td><\/td>USA<\/td>Special<\/td>24.0<\/td>Paper<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-448<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>1000 Ortho-Phase<\/td>1950<\/td>Milo Frey<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-313<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>101C Dial Rule<\/td>1975<\/td>NOS<\/td>USA<\/td>Circular<\/td>10.2<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-325<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>103-ES Mark-Up Calculator<\/td>1975<\/td>NOS<\/td>USA<\/td>Circular<\/td>10.2<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-326<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>108ES<\/td>1975<\/td><\/td>Japan<\/td>Circular<\/td>8.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-327<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>112C Metric Converter – Liquid<\/td>1975<\/td>x2<\/td>USA<\/td>Circular<\/td>15.2<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-329<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>112C Metric Converter – Liquid<\/td>1975<\/td>x2<\/td>USA<\/td>Circular<\/td>15.2<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-330<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>112C Metric Converter – Weight<\/td>1975<\/td><\/td>USA<\/td>Circular<\/td>15.2<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-328<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>120 Simplex<\/td>1962<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-300<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>120 Simplex<\/td>1962<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-299<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>121 Microline<\/td>1970<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-301<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>14 U.S. Military Slide Rule<\/td>1962<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-811<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>14 U.S. Military Slide Rule<\/td>1962<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-467<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>140 Microline<\/td>1975<\/td><\/td>Mexico<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-302<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>160 Microline<\/td>1975<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-286<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>160C-T Microline<\/td>1975<\/td><\/td>Mexico<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-295<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>2 Deci Log Log<\/td>1950<\/td>17133<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-315<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>20 Basic<\/td>1955<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>0<\/td>1<\/td>1<\/td>0<\/td>MHF-297<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>200 Trig<\/td>1953<\/td>38 National Carbon Company<\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-287<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>200 Trig<\/td>1959<\/td>39 Slide<\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-288<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>300 Log<\/td>1952<\/td>42 Slide<\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>1<\/td>0<\/td>0<\/td>0<\/td>ISRM<\/td>ISRM<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>300 Log<\/td>1955<\/td>42 Z Slide<\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-292<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>4 Deci Log Log<\/td>1950<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-317<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>61 Promotional Midlan-Ross Corporation<\/td>1957<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Paper<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-285<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>700 U. S. Air Force Aerial Photo Slide Rule Type A-2<\/td>1954<\/td>59<\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-293<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>800-T Log Log<\/td>1969<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-602<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>901 Simplex<\/td>1955<\/td>20<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-603<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>902-T Simplex Trig<\/td>1955<\/td>39\/41 Slide<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-307<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>902-T Simplex Trig<\/td>1958<\/td>39\/41<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-308<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>902-T Simplex Trig<\/td>1966<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-309<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>903-T Pickett-Trig Conversion<\/td>1957<\/td>47<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-604<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>905-ES “A” Texas Speed Rule<\/td>1962<\/td>119<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-312<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>905-ES “A” Texas Speed Rule<\/td>1962<\/td>119<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-324<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N1010-ES Trig<\/td>1960<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-314<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N1010-ES Trig<\/td>1975<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-605<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N1010-ES Trig Demonstration<\/td>1964<\/td><\/td>USA<\/td>Linear<\/td>100.0<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-606<\/td>Shop Wall<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N1010-T Trig<\/td>1966<\/td>945239<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-321<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N1050 Fuller Traffic Rule<\/td>1975<\/td><\/td>Mexico<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>ISRM<\/td>ISRM<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N200-ES Trig<\/td>1975<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-290<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N200-ES Trig<\/td>1975<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-601<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N200-T Trig<\/td>1961<\/td>38<\/td>USA<\/td>Linear<\/td>12.6<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-289<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N3-ES Power Log Exponential<\/td>1975<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>1<\/td>MHF-316<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N300-ES Log Log<\/td>1962<\/td>PT 2 Rule Pack<\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-323<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N3P-ES Power Log Exponential<\/td>1966<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-294<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N4-ES Vector-Type LOG LOG<\/td>1962<\/td>74 272<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-319<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N4-ES Vector-Type LOG LOG<\/td>1964<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-318<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N4-ES Vector-Type LOG LOG, Magnifier Cursor<\/td>1962<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-859<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N4-T Vector-Type LOG LOG<\/td>1964<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-600<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N4P-ES Vector-Type Log Log<\/td>1966<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-599<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N500-ES HI Log\/Log<\/td>1962<\/td>PT 2 Rule pack<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-322<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N500-ES HI Log\/Log<\/td>1964<\/td>C1962<\/td>USA<\/td>Linear<\/td>25.0<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-303<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N515-T Electronic<\/td>1962<\/td>349<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-305<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N515-T Electronic<\/td>1966<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-304<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N600-ES Log Log Speed Rule<\/td>1975<\/td>Paul LaFortune<\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-788<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N600-ES Log Log Speed Rule<\/td>1975<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Metal<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-296<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N901-ES Simplex<\/td>1960<\/td>65<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-306<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N902-ES Simplex Trig<\/td>1959<\/td>39\/41 Slide<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-311<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N902-ES Simplex Trig<\/td>1960<\/td>66\/41 Slide<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-310<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>N904-ES Trig & Decimal Keeper Speed Rule<\/td>1962<\/td>66\/123 75888<\/td>USA<\/td>Linear<\/td>25.0<\/td>Metal<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-320<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett<\/td>Trig, Training(120) Overhead Projection<\/td>1962<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-298<\/td>MHF-D21<\/td>0<\/td>\n<\/tr>\n
Pickett Manual<\/td>Electronics and Your Slide Rule Pt I – IV<\/td>1965<\/td>3132 to 3135<\/td>USA<\/td>Manual<\/td>0.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-695<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett Manual<\/td>How to use Dual Base Slide Rule Exponential Ln-L Scales<\/td>1959<\/td>M-21<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-690<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett Manual<\/td>How to use Log Log Slide Rules<\/td>1953<\/td>Form M-14<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-867<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett Manual<\/td>How to use Log Log Slide Rules<\/td>1960<\/td>Pull-3<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-694<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett Manual<\/td>How To Use the Model 1000 Slide Rule<\/td>1948<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-689<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett Manual<\/td>How to use the TRIG Pickett Slide Rule<\/td>1952<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-692<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett Manual<\/td>How to use Trig Slide Rules<\/td>1960<\/td>M-12 R<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-691<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett Manual<\/td>How to use Trig Slide Rules<\/td>1960<\/td>M-12 R<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-693<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett Manual<\/td>How to use Trig Slide Rules<\/td>1960<\/td>MT-2<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-765<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Pickett Manual<\/td>Model 2<\/td>0<\/td><\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-751<\/td>MHF-D19<\/td>0<\/td>\n<\/tr>\n
Pilot Business Machine Co., LTD.<\/td>P-3 Calculating Machine<\/td>1967<\/td>3008067<\/td>Japan<\/td>Adding Machine<\/td><\/td>No Value<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-869<\/td>Top Flat Files<\/td>0<\/td>\n<\/tr>\n
Pratt & Whitney Aircraft – Perrygraf<\/td>Gas Turbine Computer<\/td>1957<\/td><\/td>USA<\/td>Special<\/td>12.7<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-524<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
Publications Department – Raritan Arsenal<\/td>TM 9-526 Technical Manual Graphical Firing Tables<\/td>1943<\/td>RAPD13DEC43-95M<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-699<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Puregas Equipment Corp.<\/td>Gas Pressurization Computer PEC 531<\/td>0<\/td><\/td>USA<\/td>Special<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-437<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Radiac & Nuclear Yield<\/td>ABC-M1A1 & ABC-M4A1<\/td>1990<\/td><\/td>USA<\/td>Special<\/td>10.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-512<\/td>MHF-D17<\/td>0<\/td>\n<\/tr>\n
Rand Drill Company<\/td>Cox’s Compressed-Air Discharge \/ Pump Computer<\/td>1897<\/td><\/td>USA<\/td>Special<\/td>11.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-491<\/td>MHF-D16<\/td>1<\/td>\n<\/tr>\n
Random Research, Inc.<\/td>Harvard Logarithmic Selector<\/td>1973<\/td><\/td>USA<\/td>Special<\/td>12.7<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-514<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Ray E. Dennis<\/td>Graphics En. Dr. 3260 Rle No. 4, t=U^1.3M<\/td>1948<\/td>Handmade<\/td>USA<\/td>Special<\/td>31.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-460<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
RCA<\/td>Satellite Location Chart<\/td>0<\/td><\/td>USA<\/td>Special<\/td>22.0<\/td>Plastic<\/td>1<\/td>0<\/td>0<\/td>1<\/td>MHF-462<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Regal Precision<\/td>The Regal Presision Calaulator Profit<\/td>0<\/td><\/td>USA<\/td>Special<\/td>15.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-458<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Relay<\/td>DCB-517<\/td>1954<\/td>CS-3<\/td>Japan<\/td>Linear<\/td>12.5<\/td>Wood<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-612<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Reliable Typewriter & Adding Machine Co.<\/td>Addometer<\/td>0<\/td><\/td>USA<\/td>Addometer<\/td>29.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-477<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Reliable Typewriter & Adding Machine Co.<\/td>Addometer B<\/td>0<\/td><\/td>USA<\/td>Addometer<\/td>29.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-478<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Reo Motor Car Company<\/td>Truck Performance Slide Rule<\/td>1933<\/td><\/td>USA<\/td>Special<\/td>20.2<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-449<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Roncari Industries<\/td>Concrete Volume Calculator<\/td>0<\/td><\/td>USA<\/td>No Value<\/td>12.5<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-453<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Royal Dutch Engineering Works<\/td>Pipe & pump<\/td>0<\/td><\/td>Holland<\/td>Special<\/td>12.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-519<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Ruxton MultiVider Corp<\/td>Ruxton Multi-Vider Pencil<\/td>1929<\/td><\/td>USA<\/td>Special<\/td>10.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-851<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
S.R. & S.E. Co. Inc<\/td>Bituminous-Mix Slide Rule<\/td>1944<\/td><\/td>USA<\/td>Special<\/td>30.4<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-439<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Sama & Etani<\/td>600 Hewitt-Robins<\/td>1969<\/td><\/td>Japan<\/td>Circular<\/td>6.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-498<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Sama & Etani<\/td>600 Michael O’Leary Memorial Edition<\/td>2003<\/td><\/td>Japan<\/td>Circular<\/td>6.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-499<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Sama & Etani<\/td>600-OP Projection<\/td>1969<\/td><\/td>Japan<\/td>Circular<\/td>13.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-500<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Sans & Streiffe<\/td>311<\/td>0<\/td>J.S-2<\/td>Japan<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-394<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Schall & Son<\/td>Slide Rule for calculating X Ray Exposures<\/td>1912<\/td><\/td>UK<\/td>Special<\/td>25.7<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-442<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Schick Incorporated<\/td>Stadimeter<\/td>1943<\/td>3501-1943<\/td>USA<\/td>Other<\/td>0.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-776<\/td>Bookcase-2<\/td>0<\/td>\n<\/tr>\n
Schuykill Paper Co.<\/td>Paper Slide Rule<\/td>0<\/td><\/td>USA<\/td>Special<\/td>35.5<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-426<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Scientific Instruments Co.<\/td>1610-D<\/td>1963<\/td><\/td>Japan<\/td>Circular<\/td>11.7<\/td>Metal<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-507<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Sears, Roebuck and Co.<\/td>Merchant’s Calculator<\/td>1946<\/td><\/td>USA<\/td>Linear<\/td>28.6<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-377<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Slide Chart Corp.<\/td>Fan & Blower RPM Change Converter<\/td>1976<\/td><\/td>USA<\/td>Circular<\/td>15.5<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-525<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
Slide Rule & Scale Eng. Co.<\/td>Brick & Tile Computing<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>29.8<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-455<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Sports Car Press<\/td>A Guide to Rallying<\/td>1957<\/td>Larry Reid<\/td>USA<\/td>Manual<\/td>0.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-510<\/td>MHF-D17<\/td>0<\/td>\n<\/tr>\n
Stanley Fuller<\/td>Fuller Spiral Slide Rule<\/td>1945<\/td>4893 21<\/td>UK<\/td>Cylindrical<\/td>30.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-821<\/td>Top Flat Files<\/td>0<\/td>\n<\/tr>\n
Sterling<\/td>565 Automatic Adding Machine<\/td>0<\/td><\/td>USA<\/td>Addometer<\/td>20.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-473<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Sterling<\/td>587<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-576<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Sterling<\/td>594 Decimal Trig Log-Log<\/td>1965<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-581<\/td>Display<\/td>0<\/td>\n<\/tr>\n
Sterling<\/td>594 Decimal Trig Log-Log<\/td>1965<\/td>PS<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-374<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Sterling<\/td>594 Decimal Trig Log-Log<\/td>1972<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-373<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Sterling<\/td>684 Precision<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-369<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Sterling<\/td>685 Precision<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-370<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Sterling<\/td>685 Precision<\/td>1971<\/td>MHF<\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-371<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Sterling<\/td>685Precision<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-372<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Stevens Engineering Company<\/td>Rally Indicator<\/td>1959<\/td><\/td>USA<\/td>Special<\/td>15.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-509<\/td>MHF-D17<\/td>0<\/td>\n<\/tr>\n
Stevens Engineering Company<\/td>Rally Indicator Model 25<\/td>1959<\/td><\/td>USA<\/td>Special<\/td>23.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-508<\/td>MHF-D17<\/td>0<\/td>\n<\/tr>\n
Sun Hemmi<\/td>4″ in\/A-BC-D\/cm SLT<\/td>0<\/td><\/td>Japan<\/td>Linear<\/td>10.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-380<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Swank<\/td>Money Clip<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>3.6<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-648<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Swank<\/td>Tie Clip<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>4.1<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-649<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Swank<\/td>Tie Clip<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>3.6<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-651<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Swank<\/td>Tie Clip<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>4.1<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>1<\/td>MHF-652<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Swank<\/td>Tie Clip<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>4.1<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-650<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Sylvania<\/td>Flash Film Pencil<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>14.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-653<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Taisho Kogyo<\/td>101 Patent 525597<\/td>0<\/td><\/td>Japan<\/td>Special<\/td>12.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-822<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Tavernier Gravet<\/td>Rietz<\/td>0<\/td>110<\/td>France<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-879<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Tavernier-Gravet<\/td>11-22 P\u00e9raux rule<\/td>1939<\/td>34 \/ 32 End<\/td>France<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>1<\/td>Sold<\/td>Sold<\/td>0<\/td>\n<\/tr>\n
Tavernier-Gravet<\/td>12-11<\/td>1900<\/td><\/td>France<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>1<\/td>MHF-808<\/td>MHF-D22<\/td>1<\/td>\n<\/tr>\n
Tavernier-Gravet<\/td>14 G. Barriere<\/td>0<\/td><\/td>France<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-783<\/td>MHF-D22<\/td>1<\/td>\n<\/tr>\n
Tavernier-Gravet<\/td>18 Dual Slide<\/td>1925<\/td>6-25<\/td>France<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-782<\/td>MHF-D22<\/td>1<\/td>\n<\/tr>\n
Tavernier-Gravet<\/td>Medailles D\u2019ur 45\/8<\/td>1900<\/td><\/td>France<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-807<\/td>MHF-D22<\/td>1<\/td>\n<\/tr>\n
Tavernier-Gravet<\/td>No 26 bis RIETZ<\/td>0<\/td>123 end<\/td>France<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-845<\/td>MHF-D22<\/td>0<\/td>\n<\/tr>\n
Teknorit<\/td>Teknor NR 1 Volume<\/td>0<\/td>x2<\/td>Sweden<\/td>Circular<\/td>12.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-513<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Teknorit<\/td>Teknor NR 3 Weight<\/td>0<\/td><\/td>Sweden<\/td>Circular<\/td>12.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-513<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Teknorit<\/td>Teknor NR 4 Length mm<\/td>0<\/td><\/td>Sweden<\/td>Circular<\/td>12.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-513<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Teknorit<\/td>Teknor NR 6 Surface<\/td>0<\/td><\/td>Sweden<\/td>Circular<\/td>12.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-513<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Teknorit<\/td>Teknor NR 7 Pressure<\/td>0<\/td><\/td>Sweden<\/td>Circular<\/td>12.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-513<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Teknorit<\/td>Teknor NR 8 Temperature<\/td>0<\/td><\/td>Sweden<\/td>Circular<\/td>12.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-513<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Teknorit<\/td>Teknor NR 9 Energy, HP<\/td>0<\/td><\/td>Sweden<\/td>Circular<\/td>12.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-513<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
The Art Engraving and Colortype CO<\/td>1258 size reduction<\/td>0<\/td><\/td>USA<\/td>Special<\/td>26.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-428<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
The B. F. Cummings Co.<\/td>Check Perforator<\/td>1922<\/td><\/td>USA<\/td>Other<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-779<\/td>Workshop<\/td>0<\/td>\n<\/tr>\n
The Cretex Companies, Inc.<\/td>Sewer Design Slide Rule (Based on Kutter’s Formula)<\/td>1947<\/td><\/td>USA<\/td>Special<\/td>27.5<\/td>Paper<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-628<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Thinkgeek<\/td>1337 Nanoline<\/td>2009<\/td><\/td>China<\/td>Linear<\/td>25.0<\/td>Plastic<\/td>1<\/td>1<\/td>1<\/td>0<\/td>MHF-378<\/td>MHF-D20<\/td>0<\/td>\n<\/tr>\n
Thomas S. Airev<\/td>Automotive Computing Slide Rule<\/td>0<\/td><\/td>USA<\/td>Special<\/td>12.7<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-450<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Thornton<\/td>Nautical 0552\/1148<\/td>0<\/td><\/td>UK<\/td>Linear<\/td>27.0<\/td>Plastic<\/td>1<\/td>1<\/td>0<\/td>0<\/td>MHF-463<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
U. S. Army<\/td>Direction plotting<\/td>0<\/td>with Downwind Distance Slide Rule<\/td>USA<\/td>Special<\/td>20.5<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-523<\/td>MHF-D18<\/td>0<\/td>\n<\/tr>\n
U. S. Army<\/td>Downwind Distance Slide Rule Chemical Weapons CTA 3-7-7<\/td>0<\/td>GTA 3-7-3<\/td>USA<\/td>Special<\/td>12.6<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-511<\/td>MHF-D17<\/td>0<\/td>\n<\/tr>\n
Unique<\/td>1140 Log Log<\/td>0<\/td><\/td>UK<\/td>Linear<\/td>12.7<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-396<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Unique<\/td>Log Log Slide Rule<\/td>0<\/td><\/td>UK<\/td>Linear<\/td>25.3<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-397<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Cufflinks Sterling<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-654<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Investor’s Stock Computer<\/td>0<\/td><\/td>USA<\/td>Special<\/td>22.5<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-457<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Kutters Formula N.013 Sewer<\/td>0<\/td>11 End<\/td>No Value<\/td>Special<\/td>19.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-850<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Pickett<\/td>0<\/td><\/td>No Value<\/td>Jewelry<\/td>4.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-824<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Regle Logarithmique<\/td>0<\/td><\/td>France<\/td>Special<\/td>40.0<\/td>Metal<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-817<\/td>MHF-D14<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Sector<\/td>0<\/td><\/td>UK<\/td>Special<\/td>15.0<\/td>No Value<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-559<\/td>Cabinet<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Tape Drive<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>3.6<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-664<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Tie Clip<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>6.5<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-657<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Tie Clip<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>5.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-655<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Tie Clip<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>5.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-766<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Tie Clip w\/ button loop<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>5.0<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-787<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Tie Clip Westinghouse<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>6.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-852<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Unknown<\/td>Unknown<\/td>0<\/td><\/td>UK<\/td>Linear<\/td>10.0<\/td>Wood<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-615<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
Unknown <\/td>Kitchen Slide Rule<\/td>0<\/td><\/td>USA<\/td>Special<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-627<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Unknown – Superior Piping<\/td>Tie Clip<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>3.6<\/td>Plastic<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-656<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Upjohn<\/td>USX 2833.00 Injection Calculator<\/td>1995<\/td><\/td>USA<\/td>Special<\/td>10.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-517<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
Upjohn<\/td>USX 9557.00 Pregnancy Calculator<\/td>1993<\/td><\/td>USA<\/td>Special<\/td>11.5<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-516<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
US Army<\/td>M24 Howitzer 75mm<\/td>1945<\/td>7674033<\/td>USA<\/td>Linear<\/td>28.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-470<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Utilities Distributors, Inc.<\/td>UDI Gas Slide Rule<\/td>1946<\/td>EAC 7-20-46<\/td>USA<\/td>Special<\/td>25.5<\/td>Wood<\/td>1<\/td>0<\/td>0<\/td>0<\/td>MHF-438<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n
Vernon<\/td>Cufflinks<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>0.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-658<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Vernon<\/td>Tie Clip & Cufflinks<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>4.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-660 & A<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Vernon<\/td>Tie Clip & Cufflinks<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>4.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-659 & A<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Vernon<\/td>Tie Clip Sterling<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>4.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-661<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
W & G<\/td>432 Comprehensive <\/td>0<\/td><\/td>Australia<\/td>Linear<\/td>25.0<\/td>Wood<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-617<\/td>MHF-D23<\/td>0<\/td>\n<\/tr>\n
W C Cox Devonport<\/td>Timber<\/td>0<\/td><\/td>USA<\/td>Linear<\/td>58.0<\/td>Wood<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-619<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
W. & L. E. Gurley<\/td>Cox Stadia Computer<\/td>1889<\/td><\/td>USA<\/td>Special<\/td>12.0<\/td>Paper<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-493<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
W. & L. E. Gurley<\/td>Cox Stadia Computer Cat. No. 3100<\/td>0<\/td><\/td>USA<\/td>Special<\/td>12.0<\/td>Plastic<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-492<\/td>MHF-D16<\/td>0<\/td>\n<\/tr>\n
W.H.H.<\/td>Vickers Rule Slide M.G. (AUST.) MK.I.<\/td>0<\/td><\/td>Australia<\/td>Special<\/td>15.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-781<\/td>MHF-D25<\/td>0<\/td>\n<\/tr>\n
Walter H. McKenna & Co. Inc.<\/td>Tie Clip<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>3.0<\/td>Metal<\/td>0<\/td>0<\/td>1<\/td>0<\/td>MHF-662<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Walter H. McKenna & Co. Inc.<\/td>Tie Clip<\/td>0<\/td><\/td>USA<\/td>Jewelry<\/td>3.0<\/td>Metal<\/td>0<\/td>0<\/td>0<\/td>0<\/td>MHF-663<\/td>MHF-Box1<\/td>0<\/td>\n<\/tr>\n
Warren – Knight Co.<\/td>1373B Wakco Weight Rule<\/td>0<\/td><\/td>USA<\/td>Special<\/td>33.5<\/td>Plastic<\/td>0<\/td>1<\/td>0<\/td>0<\/td>MHF-420<\/td>MHF-D24<\/td>0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-43","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/www.freystuff.com\/index.php\/wp-json\/wp\/v2\/pages\/43","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.freystuff.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.freystuff.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.freystuff.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.freystuff.com\/index.php\/wp-json\/wp\/v2\/comments?post=43"}],"version-history":[{"count":14,"href":"https:\/\/www.freystuff.com\/index.php\/wp-json\/wp\/v2\/pages\/43\/revisions"}],"predecessor-version":[{"id":72,"href":"https:\/\/www.freystuff.com\/index.php\/wp-json\/wp\/v2\/pages\/43\/revisions\/72"}],"wp:attachment":[{"href":"https:\/\/www.freystuff.com\/index.php\/wp-json\/wp\/v2\/media?parent=43"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}