A W Faber | Pre-364 | 1910 | | Germany | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-406 | MHF-D23 | 0 |
A W Faber | Pre-360 Decimal Tracker Cursor | 1900 | | Germany | Linear | 25.0 | Wood | 0 | 1 | 0 | 1 | MHF-405 | MHF-D23 | 0 |
A W Faber | 1/87 Calculating Rule | 1975 | | Germany | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-403 | MHF-D23 | 0 |
A W Faber | 1/87 Calculating Rule | 1975 | | Germany | Linear | 25.0 | Wood | 0 | 0 | 0 | 1 | MHF-407 | MHF-D23 | 0 |
ACU-Math Manual | Mannheim Type Slide Rule No. 44 | 0 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-753 | MHF-D22 | 0 |
Acumath | Instructions for using Trig and Log Log Slide Rules | 1965 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-621B | MHF-D22 | 0 |
Acumath | 600 Basic Trig | 1955 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-355 | MHF-D22 | 0 |
Acumath | 400T Simplex Trig | 1968 | | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-354 | MHF-D22 | 0 |
Acumath | 400B Simplex Trig | 1965 | | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-353 | MHF-D22 | 0 |
Acumath | 400 Simplex Trig | 1968 | R F Leach | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-580 | Display | 0 |
Acumath - Berger Scientific supplies | C2165 Log Log Decimal Trig | 1965 | | USA | Linear | 25.0 | Plastic | 1 | 1 | 1 | 0 | MHF-621 | MHF-D22 | 0 |
Acumath - Berger Scientific supplies | C2141 | 1965 | | USA | Linear | 25.0 | Plastic | 0 | 0 | 0 | 0 | MHF-622 | MHF-D22 | 0 |
Aero Products Reasearch, Inc. | E6-B2 Flight Computer | 1978 | | No Value | No Value | 24.5 | Metal | 0 | 1 | 0 | 0 | MHF-465 | MHF-D25 | 0 |
Albert Nestler | Mannheim | 1939 | G. T. Pound | Germany | Linear | 35.0 | Wood | 0 | 1 | 0 | 0 | Sold | Sold | 0 |
Albert Nestler | A N | 0 | | Germany | Linear | 12.5 | Wood | 0 | 1 | 0 | 0 | MHF-400 | MHF-D23 | 0 |
Albert Nestler | 24 Rietz | 0 | | Germany | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-624 | MHF-D23 | 0 |
Albert Nestler | 23R Rietz | 0 | | Germany | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-401 | MHF-D23 | 0 |
Albert Nestler | 14/52 Micronta | 0 | | Germany | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-402 | MHF-D23 | 0 |
American Adding Machine | 5 | 0 | 55237 | USA | Adding Machine | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-769 | Workshop | 0 |
American Blueprint Co. | Military Slide Rule | 0 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-469 | MHF-D25 | 0 |
American Blueprint Co. | Military Slide Rule | 0 | SA613 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-468 | MHF-D25 | 0 |
American Pattern Works | Weight Slide Rule | 0 | | USA | Special | 38.0 | Wood | 0 | 0 | 0 | 0 | MHF-423 | MHF-D24 | 0 |
American Radio Relay League, Inc. | Ligthning Calculator Type A | 1932 | | USA | Special | 18.5 | Paper | 0 | 0 | 0 | 0 | MHF-521 | MHF-D18 | 0 |
American Slide-Chart Corp. | ENI Power Level Conversion Chart | 1984 | | USA | Special | 15.0 | Paper | 0 | 0 | 0 | 0 | MHF-631 | MHF-D18 | 0 |
American Slide-Chart Corp. | Axelson Factorule for Oil Wells | 1980 | | USA | Special | 14.2 | Plastic | 0 | 1 | 0 | 0 | MHF-432 | MHF-D24 | 0 |
Amphenol | Amphenol RF Calculator, Smith Chart | 1969 | | USA | Special | 22.0 | Plastic | 0 | 0 | 0 | 0 | MHF-520 | MHF-D18 | 0 |
Amtronix, Inc. | Caliputer | 1965 | | USA | Special | 10.0 | Metal | 0 | 1 | 0 | 0 | MHF-445 | MHF-D24 | 0 |
Anson | Am Inst Chem Eng | 0 | 1-2012KG.F. | USA | Jewelry | 4.5 | Metal | 0 | 0 | 0 | 0 | MHF-639 | MHF-Box1 | 0 |
Apec Products Corp. | Magic Multiplying Pencil | 0 | | USA | Special | 16.0 | Wood | 0 | 0 | 0 | 0 | MHF-665 | MHF-Box1 | 0 |
AREL G-W | Photo Slide Rule | 1946 | | USA | Special | 29.0 | Wood | 0 | 1 | 0 | 0 | MHF-623 | MHF-D25 | 0 |
Aristo | 870 Multilog | 1967 | 2FL08 | Germany | Linear | 12.5 | Plastic | 1 | 1 | 1 | 0 | MHF-413 | MHF-D23 | 0 |
Aristo | 869 Studiolog | 1972 | 2LIT1 | Germany | Linear | 12.5 | Plastic | 1 | 1 | 0 | 0 | MHF-412 | MHF-D23 | 0 |
Aristo | 868 Studio | 1973 | 2LST10 | Germany | Linear | 12.5 | Plastic | 1 | 1 | 1 | 0 | MHF-411 | MHF-D23 | 0 |
Aristo | 10175 Electronic | 0 | | Germany | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-414 | MHF-D23 | 0 |
Aristo | 0969 StudioLog | 1973 | 2LS 9 | Germany | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-416 | MHF-D23 | 0 |
Aristo | 0968 Studio | 1960 | 5938 | Germany | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-583 | Display | 0 |
Aristo | 0968 Studio | 1960 | 604 | Germany | Linear | 25.0 | Plastic | 1 | 0 | 0 | 0 | MHF-415 | MHF-D23 | 0 |
Aristo Charvoz | 0971 Aristo-Hyperbolog | 1960 | 601 | Germany | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-419 | MHF-D23 | 0 |
Aristo Charvoz | 0970P MultiLog | 1969 | 572 | Germany | Linear | 25.0 | Plastic | 1 | 1 | 1 | 0 | MHF-417 | MHF-D23 | 0 |
Aristo Charvoz | 0970 MultiLog | 1969 | 2FX21 | Germany | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-418 | MHF-D23 | 0 |
Arithma | Addiator | 0 | | Germany | Additator | 16.0 | Metal | 0 | 0 | 0 | 0 | MHF-476 | MHF-D25 | 0 |
Arithma | Addiator | 0 | | Germany | Additator | 16.0 | Metal | 0 | 0 | 0 | 0 | MHF-474 | MHF-D25 | 0 |
Arithma | Addiator | 0 | | Germany | Additator | 16.0 | Metal | 0 | 1 | 0 | 0 | MHF-475 | MHF-D25 | 0 |
Armour and Company | Retail Meat Pricer | 1933 | | USA | Special | 22.5 | Plastic | 0 | 0 | 0 | 0 | MHF-459 | MHF-D24 | 0 |
Automatic Adding Machine CO | Golden Gem Model 16 | 0 | 102028 | USA | Additator | 13.0 | Metal | 0 | 0 | 0 | 0 | MHF-533 | Cabinet | 0 |
Automatic Adding Machine CO | Golden Gem | 0 | 50857 | USA | Additator | 13.0 | Metal | 0 | 0 | 0 | 1 | MHF-532 | MHF-D12 | 0 |
B. L. Makepeace | | 0 | | USA | Jewelry | 4.5 | Metal | 0 | 0 | 0 | 0 | MHF-640 | MHF-Box1 | 0 |
B. T. U. Rule Co. | B. T. U. rule for Est. Steam or Water Rad. | 1911 | | USA | Linear | 29.5 | Wood | 0 | 0 | 1 | 1 | MHF-440 | MHF-D24 | 0 |
Baron Buckles | Engineer | 1981 | | Taiwan | Jewelry | 7.0 | Metal | 0 | 0 | 0 | 0 | MHF-641 | MHF-Box1 | 0 |
Bastian Bros. Co | JETS Lapel Pin | 0 | | USA | Jewelry | 2.4 | Metal | 0 | 0 | 0 | 0 | MHF-637 | MHF-Box1 | 0 |
Bastian Bros.co | JETS / Keuffel & Esser Lapel Pin | 0 | | USA | Jewelry | 2.4 | Metal | 0 | 0 | 0 | 0 | MHF-638 | MHF-Box1 | 0 |
Belcher Bros & Co | Shoe Fitting Ruler | 1900 | | USA | Special | 39.0 | Wood | 0 | 0 | 0 | 0 | MHF-272 | MHF-D10 | 0 |
Bieker's | Concrete Volume Computer | 0 | | USA | Special | 16.0 | Plastic | 0 | 0 | 0 | 0 | MHF-452 | MHF-D24 | 0 |
Blundell Rules Limited | Pilot Ballon Slide Rule, Mark IV | 0 | 2768/56 | UK | Special | 60.0 | Plastic | 0 | 0 | 1 | 0 | MHF-489 | MHF-D14 | 0 |
Blundell Rules Limited | P16-D | 1956 | PEM Gift | UK | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-395 | MHF-D23 | 0 |
Boonshaft & Fuchs, Inc / Servo Calculator Company | Direct Reading Frequency Response Slide Rule | 1959 | | USA | Special | 35.0 | Plastic | 0 | 1 | 0 | 0 | MHF-634 | MHF-D13 | 0 |
Brady Publishing Company | Slide Rule Problems Junior & Senior High School | 1958 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-750 | MHF-D19 | 0 |
Brevets Kaufman SDBG FR. | Baby-Cine Posograph | 0 | | France | Special | 12.0 | Metal | 0 | 1 | 0 | 0 | MHF-547 | Cabinet | 1 |
Burroughs Adding Machine Company | Manual of Instructions for Burroughs Calculator | 1928 | | USA | Manual | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-775 | Rolltop | 0 |
Burroughs Adding Machine Company | Class 2 Adding Machine | 1920 | 2-661759 | USA | Adding Machine | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-771 | Workshop | 0 |
Burroughs Adding Machine Company | Burroughs Calcualtor, Class 5 | 0 | | USA | Adding Machine | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-774 | Rolltop | 0 |
C-Thru Ruler Company | C-Thru Pocket Slide Rule NO. 27 | 0 | | USA | Linear | 14.8 | Plastic | 0 | 1 | 0 | 0 | MHF-376 | MHF-D20 | 0 |
Chadwick | | 1960 | | Japan | Adding Machine | 11.0 | Plastic | 0 | 0 | 0 | 0 | MHF-768 | Workshop | 0 |
Charles Bruning Co. | 2420 Simplex | 0 | Ashok K | USA | Linear | 25.0 | Plastic | 0 | 0 | 0 | 1 | MHF-359 | MHF-D20 | 0 |
Charles Bruning Co. | 2401 | 0 | Smith... | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-356 | MHF-D20 | 0 |
Charles Bruning Co. | 2401 | 0 | | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-358 | MHF-D20 | 0 |
Charles Bruning Co. | 2401 | 1944 | | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-357 | MHF-D20 | 0 |
Charles C. Ettien | Speed & HP Estimator | 1959 | | USA | Special | 10.8 | Paper | 0 | 0 | 0 | 0 | MHF-515 | MHF-D16 | 0 |
Charvoz-Roos | SR-109 | 0 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-579 | Display | 0 |
Charvoz-Roos | SR-109 | 1941 | GH | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-362 | MHF-D20 | 0 |
Charvoz-Roos | SR-109 | 1946 | LG | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-360 | MHF-D20 | 0 |
Charvoz-Roos | PSR-102 | 1941 | | USA | Linear | 12.5 | Wood | 0 | 1 | 0 | 0 | MHF-361 | MHF-D20 | 0 |
Chemical Rubber Publishing Co. | Trigonograph | 1934 | | USA | Special | 30.0 | Plastic | 0 | 1 | 0 | 0 | MHF-667 | MHF-D18 | 0 |
Concise | 28N Keyline | 0 | Magnetic Sheild Division | Japan | Circular | 6.5 | Plastic | 0 | 1 | 0 | 0 | MHF-497 | MHF-D16 | 0 |
Concise | 28N | 0 | Bermuda Tool & Die | Japan | Circular | 6.5 | Plastic | 0 | 1 | 0 | 0 | MHF-496 | MHF-D16 | 0 |
Contina AG Maureen | Curta Calculator Type 1 | 1969 | 77450 | Liechtenstien | Additator | 85.0 | Metal | 0 | 1 | 1 | 0 | MHF-562 | Cabinet | 0 |
Contina Ltd Maureen | Curta Calculator Type 2 | 1953 | 500869 | Liechtenstien | Additator | 90.0 | Metal | 0 | 1 | 0 | 0 | MHF-563 | Cabinet | 0 |
Contina Ltd Maureen | Curta Calculator Type 2 | 1964 | 526792 | Liechtenstien | Additator | 90.0 | Metal | 0 | 1 | 0 | 0 | MHF-563 | Cabinet | 0 |
Continential Motors Corporation | Motor Performance | 0 | | USA | Special | 0.0 | Plastic | 0 | 1 | 0 | 0 | MHF-451 | MHF-D24 | 0 |
Corona Star | Renown Star Lighter | 0 | | Japan | Jewelry | 3.0 | Wood | 0 | 0 | 1 | 0 | MHF-642 | MHF-Box1 | 0 |
Cox & Stevens | C-130B Load Adjuster | 0 | 2301-1680-565-7735 | USA | Special | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-466 | MHF-D25 | 0 |
Creative Workshop | Universal Circle Slide Rule | 1970 | | Denmark | Cylindrical | 7.0 | Plastic | 0 | 0 | 0 | 0 | MHF-560 | Cabinet | 0 |
Creative Workshop | Universal Circle Metric Converter | 1970 | | Hong Kong | Cylindrical | 7.0 | Plastic | 0 | 0 | 1 | 0 | MHF-767 | Top Flat Files | 0 |
Creative Workshop | Universal Circle Metric Converter | 1977 | | Hong Kong | Cylindrical | 7.0 | Plastic | 0 | 0 | 0 | 0 | MHF-561 | Cabinet | 0 |
Crosby Steam Gauge & Valve Co | Steam Gauge | 0 | 6432D | USA | Other | 0.0 | Metal | 0 | 1 | 0 | 0 | MHF-778 | Bookcase-2 | 0 |
Crown Paper Board Co., Inc | Paper Box Board Rule | 0 | | USA | Linear | 15.7 | Plastic | 0 | 0 | 1 | 0 | MHF-425 | MHF-D24 | 0 |
Cubic Calculator Company | HC Cube Master | 1964 | | USA | Special | 20.0 | Plastic | 0 | 0 | 0 | 0 | MHF-518 | MHF-D18 | 0 |
D. HedBerg | Graphic Chemical Predictor | 1958 | | USA | Special | 20.5 | Plastic | 0 | 0 | 0 | 0 | MHF-522 | MHF-D18 | 0 |
DAL | Executive Slide Rule Problem Solver | 1963 | | USA | Special | 25.5 | Wood | 0 | 0 | 1 | 0 | MHF-379 | MHF-D20 | 0 |
Danfoss | Refrigerant Slide RT.0X.A5.00 | 0 | | Denmark | Linear | 0.0 | Plastic | 0 | 0 | 0 | 0 | MHF-447 | MHF-D24 | 0 |
Datarule Publishing Co. | Datarule Model B | 1950 | Samuel Heller | USA | Linear | 21.0 | Plastic | 0 | 1 | 0 | 0 | MHF-431 | MHF-D24 | 0 |
Dennert & Pape | Hazen-Williams Hydraulic | 1923 | D.R.P.No126499 | Germany | Special | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-435 | MHF-D24 | 0 |
Devco | Slide Pen Cyl Model 20 | 0 | | USA | Jewelry | 10.0 | Plastic | 0 | 0 | 0 | 0 | MHF-643 | MHF-Box1 | 0 |
Dietzgen | N1733 Polymath Decimal Trig Log Log | 1959 | 8343 | USA | Linear | 25.0 | Wood | 1 | 1 | 1 | 0 | MHF-582 | Display | 0 |
Dietzgen | B-1725 Vector Type Log Log | 1965 | | Japan | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-365 | MHF-D20 | 0 |
Dietzgen | 1773 Log-Log | 1962 | 1262 | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-368 | MHF-D20 | 0 |
Dietzgen | 1767P National | 1952 | | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 1 | MHF-364 | MHF-D20 | 0 |
Dietzgen | 1759-B Closed Simplex | 1927 | | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-363 | MHF-D20 | 0 |
Dietzgen | 1739-L Clear-Scale | 1954 | | Germany | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-399 | MHF-D20 | 0 |
Dietzgen | 1735 Maniphase Log Log Vector | 1952 | 107274 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-367 | MHF-D20 | 0 |
Dietzgen | 1734 Microglide Decimal Trig Log Log | 1970 | 031310 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-366 | MHF-D20 | 0 |
Dietzgen Manual | Slide Rule No 1774 System Darmstadt Instructions | 0 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-701 | MHF-D20 | 0 |
Dietzgen Manual | Maniphase Slide Rule | 0 | AM/1767/ISB | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-700 | MHF-D20 | 0 |
Dietzgen Manual | Decimal Trig Log Log Slide Rule | 1959 | 1786, P-415 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-698 | MHF-D20 | 0 |
Dilts | Paper Stock Horsepower and Volume Calculator | 0 | | USA | Special | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-427 | MHF-D24 | 0 |
Diwa | 611-1 Electro Pocket | 0 | | Denmark | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-626 | MHF-D23 | 0 |
E. S. A. Ltd Holborn Viaduct | Harrow Mark Reducer | 0 | | UK | Special | 55.9 | Wood | 0 | 0 | 0 | 0 | MHF-486 | MHF-D25 | 1 |
E. W. Hiltpold | Hiltpold Slide Rule | 1947 | + Pat 227376 | Switzerland | Circular | 10.0 | Plastic | 0 | 1 | 0 | 0 | MHF-614 | Cabinet | 0 |
E.TATA | Beginner's Slide Rule 555 | 0 | | Japan | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-390 | MHF-D23 | 0 |
Edmund Scientific Co. | Edmund S.N. 40,752 Chemical Predictor | 0 | 602533-1 | USA | Special | 27.7 | Plastic | 0 | 0 | 0 | 0 | MHF-630 | MHF-D18 | 0 |
Engineering Instruments | The Quick and Easy Slide Rule Instruction Book | 0 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-340C | MHF-D22 | 0 |
Engineering Instruments | Code Maker | 0 | | USA | Special | 18.0 | Wood | 0 | 0 | 0 | 0 | MHF-341 | MHF-D22 | 0 |
Engineering Instruments | 10B? | 1967 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-335 | MHF-D22 | 0 |
Engineering Instruments | 10-B? | 1959 | | USA | Linear | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-334 | MHF-D22 | 0 |
F C Farmar | Farmar's Rule | 1920 | | UK | Special | 42.2 | Wood | 1 | 0 | 0 | 0 | MHF-456 | MHF-D25 | 0 |
Faber Castell | 8/10 | 1975 | | Germany | Circular | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-620 | MHF-D23 | 0 |
Faber Castell | 62/83N Novo-Duplex | 1974 | | Germany | Linear | 12.5 | Plastic | 1 | 1 | 1 | 0 | MHF-409 | MHF-D23 | 0 |
Faber Castell | 2/83N Novo-Biplex | 1962 | | Germany | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-410 | MHF-D23 | 0 |
Faber Castell | 111/87A Addiator Rietz | 1957 | 57 11 | Germany | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-404 | MHF-D23 | 0 |
Fearns Calculators | Inertia Calculator for Rotating Masses | 0 | | UK | Special | 19.1 | Plastic | 0 | 1 | 0 | 0 | MHF-527 | MHF-D18 | 0 |
Felt & Terrant Mfg. Co. | Comptometer | 1920 | | USA | Adding Machine | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-772 | Workshop | 0 |
Feutron | Feuchte-Rechenstab - typ 1802 | 0 | | Germany | Linear | 27.0 | Plastic | 1 | 0 | 1 | 0 | MHF-441 | MHF-D24 | 0 |
Firth Sterling Steel & Carbide Corp. | Wire Drafting Calculator | 1951 | | USA | Circular | 11.0 | Plastic | 0 | 1 | 0 | 0 | MHF-618 | MHF-D15 | 0 |
Fowler | Universal Calculator | 1950 | | UK | Circular | 7.5 | Metal | 0 | 1 | 0 | 1 | MHF-494 | MHF-D16 | 0 |
Foxboro Company | Pub 19, Valve & Meter SR | 1962 | | USA | Special | 13.5 | Plastic | 0 | 1 | 0 | 0 | MHF-434 | MHF-D24 | 0 |
Foxboro Company | Pub 19, Valve & Meter SR | 1971 | | USA | Special | 13.5 | Plastic | 0 | 1 | 0 | 0 | MHF-433 | MHF-D24 | 0 |
Fredrick Post Co. | 1462 | 0 | | Japan | Linear | 25.0 | Wood | 1 | 1 | 1 | 1 | MHF-613 | MHF-D23 | 0 |
Fredrick Post Co. | 1446 | 0 | | Japan | Linear | 25.0 | Wood | 0 | 1 | 0 | 1 | MHF-384 | MHF-D23 | 0 |
Fredrick Post Co. | 1444K | 1951 | | Japan | Linear | 12.5 | Wood | 0 | 1 | 0 | 0 | MHF-383 | MHF-D23 | 0 |
Fredrick Post Co. | 1441 | 1951 | BL | Japan | Linear | 10.1 | Wood | 0 | 1 | 0 | 0 | MHF-381 | MHF-D23 | 0 |
Fuji | 551 RCA | 0 | | Japan | Linear | 12.5 | Plastic | 1 | 1 | 1 | 0 | MHF-391 | MHF-D23 | 0 |
G. Felsenthal & Sonc, Inc. | FAA-46C Computer, Air Navigation | 0 | AF5916761 | USA | Special | 28.2 | Metal | 0 | 1 | 0 | 0 | MHF-464 | MHF-D25 | 0 |
Geo. W. Richardson | The Slide Rule Simplifed | 1918 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-688 | MHF-D22 | 0 |
Geo. W. Richardson | Pantocrat Slide Rule | 1911 | | USA | Linear | 25.0 | Metal | 0 | 0 | 0 | 0 | MHF-345 | MHF-D22 | 0 |
Geo. W. Richardson | 812 Pantocrat Slide Rule | 1912 | | USA | Linear | 25.0 | Metal | 0 | 0 | 0 | 0 | MHF-346 | MHF-D22 | 0 |
Geo. W. Richardson | 812 Pantocrat Slide Rule | 1912 | | USA | Linear | 25.0 | Metal | 0 | 0 | 1 | 0 | MHF-347 | MHF-D22 | 0 |
Geo. W. Richardson | 1917 Military | 0 | | USA | Linear | 43.4 | Metal | 0 | 0 | 0 | 0 | MHF-352 | MHF-D22 | 0 |
Geo. W. Richardson | 1812 Pantocrat Mannheim | 1912 | Technical Supply Co. | USA | Linear | 25.0 | Metal | 0 | 0 | 0 | 0 | MHF-349 | MHF-D22 | 0 |
Geo. W. Richardson | 1776 Simplex | 1912 | | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-351 | MHF-D22 | 0 |
Geo. W. Richardson | 1776 Simplex | 1912 | | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 1 | MHF-348 | MHF-D22 | 0 |
Geo. W. Richardson | 1776 Polymetric with CI | 1912 | | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-350 | MHF-D22 | 0 |
Gerber Scientific Instrument Co. | TP007200B Variable Scale | 0 | | USA | Special | 50.0 | Metal | 0 | 0 | 1 | 0 | MHF-480 | MHF-D14 | 0 |
Gerber Scientific Instrument Co. | TP-007100 Variable Scale | 0 | | USA | Special | 23.0 | Metal | 0 | 0 | 1 | 0 | MHF-481 | MHF-D14 | 0 |
Gilson | Midget | 1919 | | USA | Circular | 10.0 | Metal | 0 | 0 | 0 | 0 | MHF-505 | MHF-D17 | 1 |
Gilson | Midget | 1931 | | USA | Circular | 9.5 | Metal | 0 | 0 | 0 | 0 | MHF-506 | MHF-D17 | 1 |
Gilson | Binary | 1931 | Thomas D.Pease | USA | Circular | 20.0 | Metal | 0 | 1 | 0 | 0 | MHF-504 | MHF-D17 | 1 |
Gilson | Binary | 1972 | MHF | USA | Circular | 20.0 | Metal | 0 | 1 | 0 | 0 | MHF-541 | Display | 1 |
Gilson | Atlas II Calculator | 1931 | | USA | Circular | 20.0 | Metal | 0 | 0 | 0 | 0 | MHF-540 | Display | 1 |
Gilson | Atlas II - Binary | 1949 | William W. Correll | USA | Circular | 20.0 | Metal | 1 | 1 | 0 | 0 | MHF-502 | MHF-D17 | 1 |
Gilson | Atlas I Calculator | 1922 | | USA | Circular | 24.5 | Metal | 0 | 1 | 0 | 0 | MHF-501 | MHF-D17 | 1 |
Gilson - Fredrick Post | Atlas III Slide Rule | 1931 | | USA | Circular | 20.0 | Metal | 0 | 1 | 0 | 0 | MHF-503 | MHF-D17 | 1 |
Globemaster | 62200 plastic slide rule | 0 | | Japan | No Value | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-392 | MHF-D23 | 0 |
GUCO | 8200 Concrete Estimator | 0 | | USA | Special | 18.5 | Plastic | 0 | 0 | 0 | 0 | MHF-454 | MHF-D24 | 0 |
H C Calculigraphe | Calculigraphe Boucher | 1900 | | France | Circular | 4.5 | Metal | 1 | 0 | 0 | 0 | MHF-267 | Cabinet | 0 |
Handmade | Upset Ratio | 0 | Handmade | USA | Special | 20.8 | Metal | 0 | 0 | 0 | 0 | MHF-443 | MHF-D24 | 0 |
Handmade | Head Depth | 0 | Handmade | USA | Special | 20.6 | Metal | 0 | 0 | 0 | 0 | MHF-444 | MHF-D24 | 0 |
Hemmi | An Instruction Manual for Hemmi Slide Rules P280 and P281 | 0 | 7004T0 | Japan | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-697 | MHF-D23 | 0 |
Hemmi | 40RK | 1969 | | Japan | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-385 | MHF-D23 | 0 |
Hemmi | 34RK Toshiba - Tokyo Shibaura Electric Co., Ltd. | 1960 | | Japan | Linear | 12.5 | Wood | 0 | 1 | 0 | 0 | MHF-382 | MHF-D23 | 0 |
Hemmi | 2664 | 0 | | Japan | Linear | 25.0 | Plastic | 0 | 0 | 1 | 0 | MHF-610 | MHF-D23 | 0 |
Hemmi | 257 Chemical | 1956 | G E | Japan | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-608 | MHF-D23 | 0 |
Hemmi | 257 Chemical | 1965 | P K | Japan | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-609 | MHF-D23 | 0 |
Hemmi / Ahrend | P281 | 1969 | Date Code TL | Japan | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-386 | MHF-D23 | 0 |
Hemmi / Ahrend | Algemene Handleiding Voortrekker Rekenlinialen P281 | 1969 | Dat1380/5/Q | Germany | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-696 | MHF-D23 | 0 |
Hemmi / Fredrick Post Co. | 1447P | 1965 | | Japan | Linear | 25.0 | Plastic | 0 | 0 | 1 | 0 | MHF-611 | MHF-D23 | 0 |
Hemmi / Fredrick Post Co. | 1447 | 1951 | | Japan | Linear | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-577 | Display | 0 |
Hemmi / Teledyne Post | 44CA-600 Versalog II | 0 | WG | Japan | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-387 | MHF-D23 | 0 |
Henry W. Tomlinson, A.I.A. | The Winslow Strength Computing Slide-Rule | 1932 | | USA | Special | 26.0 | Paper | 0 | 0 | 1 | 0 | MHF-629 | MHF-D24 | 0 |
Hoffman | Airplane Designer | 1921 | 458 | USA | Special | 15.0 | Paper | 0 | 0 | 0 | 0 | MHF-495 | Cabinet | 1 |
Hoffman Products | Short Directions for Use of the 10- and 5 inches UTO Slide Rules | 0 | 2 copies | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-752 | MHF-D19 | 0 |
Ingersoll-Rand Co. | Cox's Compressed-Air Discharge Computer | 1900 | | USA | Special | 11.0 | Paper | 0 | 0 | 0 | 0 | MHF-490 | MHF-D16 | 1 |
Inst of Meteorology U of Chicago | Pressure-Height Slide Rule | 1943 | John C. Bellamy | USA | Special | 37.5 | Wood | 0 | 0 | 0 | 0 | MHF-542 | Shop Wall | 1 |
Inst of Meteorology U of Chicago | Horizon Temp & Press Gradient Scale | 1943 | John C. Bellamy | USA | Special | 22.0 | Paper | 0 | 0 | 0 | 0 | MHF-543 | MHF-D16 | 1 |
IWA De Muiderkring N. V. | IWA-TRONIC 0272 | 1963 | | Germany | Linear | 20.0 | Plastic | 0 | 1 | 0 | 0 | MHF-430 | MHF-D24 | 0 |
J. Amsler / B. K. Elliott Co | | 1920 | 56442 | No Value | Planimeter | 0.0 | No Value | 0 | 0 | 1 | 0 | MHF-482 | MHF-D14 | 0 |
J. Halden & Co., Ltd. | Halden Calculex | 1925 | | UK | Circular | 6.0 | Metal | 0 | 1 | 0 | 0 | MHF-268 | Cabinet | 0 |
J. M. Spitzglass | Spitzglass Slide Rule and Flow Computer | 1918 | | USA | Special | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-436 | MHF-D24 | 0 |
James Farrow & Son | Pilot Ballon Slide Rule, Mark IV | 0 | 2652/53 | UK | Special | 60.0 | Plastic | 0 | 0 | 1 | 0 | MHF-487 | MHF-D14 | 0 |
Kesling Pocket Adder Company | Kes-Add Pocket Adder | 1950 | | USA | Addometer | 12.5 | Plastic | 0 | 1 | 0 | 1 | MHF-472 | MHF-D25 | 0 |
Keuffel & Esser | Unknown In/A,DF-CF,CI,C-C,K/CM S(dms)BLT | 1949 | 434542 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-81 | MHF-D3 | 1 |
Keuffel & Esser | TimeSlide Calendar | 1955 | | USA | Special | 29.5 | Wood | 1 | 1 | 0 | 0 | MHF-598 | MHF-D10 | 0 |
Keuffel & Esser | Tie Tack | 0 | | USA | Jewelry | 2.5 | Metal | 0 | 0 | 1 | 0 | MHF-645 | MHF-Box1 | 0 |
Keuffel & Esser | Tie Tack | 0 | | USA | Jewelry | 2.5 | Metal | 0 | 0 | 1 | 0 | MHF-646 | MHF-Box1 | 0 |
Keuffel & Esser | Tie Clip Silver | 0 | | USA | Jewelry | 4.0 | Metal | 0 | 0 | 0 | 0 | MHF-644 | MHF-Box1 | 0 |
Keuffel & Esser | Table, Graphical Firing, M12 | 1943 | | USA | Linear | 40.2 | Wood | 0 | 1 | 0 | 0 | MHF-471 | MHF-D25 | 0 |
Keuffel & Esser | Short Base Triangulation | 1945 | | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 1 | MHF-248 | MHF-D9 | 0 |
Keuffel & Esser | Reymond Leather Calculator | 1926 | F308 | USA | Special | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-546 | MHF-D12 | 0 |
Keuffel & Esser | PL Slide Rule Indicator | 0 | | USA | Magnifier | 0 | Plastic | 1 | 0 | 1 | 0 | | | 0 |
Keuffel & Esser | PL Slide Rule Indicator | 0 | In PL Box | USA | Magnifier | 0 | Plastic | 1 | 0 | 1 | 0 | | | 0 |
Keuffel & Esser | National Union Radio | 1937 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-259 | MHF-D10 | 0 |
Keuffel & Esser | N9081-3 Doric Log Log Decitrig | 1951 | 43448 | USA | Linear | 25.0 | Plastic | 1 | 0 | 0 | 0 | MHF-193 | MHF-D6 | 0 |
Keuffel & Esser | N9081-3 Doric Log Log Decitrig | 1954 | 17493 | USA | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-194 | MHF-D6 | 0 |
Keuffel & Esser | N4238 Compensating Polar E/M | 1936 | 4576 | Germany | Planimeter | 283.6 | Metal | 0 | 1 | 0 | 0 | MHF-483 | Cabinet | 0 |
Keuffel & Esser | N4133 Mannheim Roy Lance Electrican's | 1928 | 210019 | USA | Linear | 20.0 | Wood | 0 | 1 | 0 | 0 | MHF-255 | MHF-D10 | 0 |
Keuffel & Esser | N4133 Mannheim Roy Lance Electrican's | 1947 | 415945 | USA | Linear | 20.0 | Wood | 0 | 1 | 0 | 0 | MHF-256 | MHF-D10 | 0 |
Keuffel & Esser | N4101 Mannheim Stadia | 1942 | 964847 | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-245 | MHF-D9 | 0 |
Keuffel & Esser | N4100 Mannheim Stadia | 1954 | 768599 | USA | Linear | 25.0 | Wood | 0 | 1 | 1 | 0 | MHF-238 | MHF-D9 | 0 |
Keuffel & Esser | N4096M Mannheim Merchant's | 1953 | 896800 | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-232 | MHF-D9 | 0 |
Keuffel & Esser | N4096 Mannheim Merchant's | 1950 | 698326 | USA | Linear | 50.0 | Wood | 0 | 0 | 1 | 0 | MHF-535 | Top Flat Files | 0 |
Keuffel & Esser | N4096 Mannheim Merchant's | 1960 | 629831 | USA | Linear | 50.0 | Wood | 0 | 0 | 1 | 0 | MHF-534 | Top Flat Files | 0 |
Keuffel & Esser | N4095 Merchant's | 1921 | 62 end | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-236 | MHF-D9 | 0 |
Keuffel & Esser | N4092-5 Log Log | 1931 | 309988 | USA | Linear | 50.0 | Wood | 1 | 0 | 0 | 0 | MHF-206 | MHF-D7 | 0 |
Keuffel & Esser | N4092-5 Log Log | 1934 | 468477 | USA | Linear | 50.0 | Wood | 1 | 1 | 0 | 0 | MHF-208 | MHF-D7 | 0 |
Keuffel & Esser | N4092-5 Log Log | 1934 | 468499 | USA | Linear | 50.0 | Wood | 1 | 1 | 0 | 0 | MHF-207 | MHF-D7 | 0 |
Keuffel & Esser | N4088-5 Polyphase | 1944 | 170279 | USA | Linear | 50.0 | Wood | 1 | 0 | 0 | 0 | MHF-141 | MHF-D11 | 0 |
Keuffel & Esser | N4083-3 Log Log Vector | 1951 | 738970 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-203 | MHF-D6 | 0 |
Keuffel & Esser | N4081-3 Log Log Decitrig | 1949 | 519945 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-568 | Display | 0 |
Keuffel & Esser | N4081-3 Log Log Decitrig | 1949 | 491367 | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 0 | MHF-190 | MHF-D6 | 0 |
Keuffel & Esser | N4081-3 Log Log Decitrig | 1951 | 716229 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-189 | MHF-D6 | 0 |
Keuffel & Esser | N4080-3 Log Log Trig | 1947 | 469618 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 1 | MHF-185 | MHF-D5 | 0 |
Keuffel & Esser | N4080-3 Log Log Trig | 1950 | 625153 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-184 | MHF-D5 | 0 |
Keuffel & Esser | N4058W Mannheim Beginner's | 1959 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-31 | MHF-D1 | 1 |
Keuffel & Esser | N4058W Mannheim Beginner's | 1959 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-30 | MHF-D1 | 1 |
Keuffel & Esser | N4053-5 Polyphase Mannheim | 1931 | 355905 | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-103 | MHF-D11 | 0 |
Keuffel & Esser | N4053-5 Polyphase Mannheim | 1950 | 651936 | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-105 | Display | 0 |
Keuffel & Esser | N4053-5 Polyphase Mannheim | 1950 | 644999 | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-104 | MHF-D11 | 0 |
Keuffel & Esser | N4053-3F Polyphase Mannheim | 1922 | 16355, 117 end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-68 | MHF-D2 | 1 |
Keuffel & Esser | N4053-3 Polyphase Mannheim | 1927 | 211917 | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-60 | MHF-D2 | 1 |
Keuffel & Esser | N4053-3 Polyphase Mannheim | 1932 | 323979 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 1 | MHF-101 | MHF-D2 | 1 |
Keuffel & Esser | N4053-3 Polyphase Mannheim | 1933 | 386745 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-62 | MHF-D2 | 1 |
Keuffel & Esser | N4053-3 Polyphase Mannheim | 1933 | 350478 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-61 | MHF-D2 | 1 |
Keuffel & Esser | N4053-3 Polyphase Mannheim | 1933 | 383058 | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-63 | MHF-D2 | 1 |
Keuffel & Esser | N4053-3 Polyphase Mannheim | 1940 | 802937 | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-65 | MHF-D2 | 1 |
Keuffel & Esser | N4053-3 Polyphase Mannheim | 1940 | 859366, John Keller | USA | Linear | 25.0 | Wood | 0 | 1 | 1 | 0 | MHF-122 | MHF-D2 | 1 |
Keuffel & Esser | N4053-3 Polyphase Mannheim | 1943 | 012841 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-66 | MHF-D2 | 1 |
Keuffel & Esser | N4053-3 Polyphase Mannheim | 1944 | 19676/19728 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 1 | MHF-102 | MHF-D2 | 1 |
Keuffel & Esser | N4053-3 Polyphase Mannheim | 1944 | 043255 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 1 | MHF-64 | MHF-D2 | 1 |
Keuffel & Esser | N4053-3 Polyphase Mannheim | 1948 | 368511 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 1 | MHF-100 | MHF-D2 | 1 |
Keuffel & Esser | N4053-3 Polyphase Mannheim | 1952 | 753791 | USA | Linear | 25.0 | Wood | 0 | 1 | 1 | 0 | MHF-67 | MHF-D2 | 1 |
Keuffel & Esser | N4053-2 Polyphase Mannheim | 1922 | 68048 | USA | Linear | 20.0 | Wood | 0 | 1 | 0 | 0 | MHF-50 | MHF-D2 | 1 |
Keuffel & Esser | N4053-2 Polyphase Mannheim | 1922 | 57609 | USA | Linear | 20.0 | Wood | 0 | 1 | 0 | 0 | MHF-566 | Display | 0 |
Keuffel & Esser | N4041 Mannheim | 1922 | 026576 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-17 | MHF-D1 | 1 |
Keuffel & Esser | N4041 Mannheim | 1932 | 338516 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-18 | MHF-D1 | 1 |
Keuffel & Esser | N4041 Mannheim | 1933 | 436830 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-20 | MHF-D1 | 1 |
Keuffel & Esser | N4041 Mannheim | 1936 | 549701 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-19 | MHF-D1 | 1 |
Keuffel & Esser | Instruction Manual Analon Eng-Sci Analy Slide Rule | 1967 | Analon Box | USA | Manual | 0.0 | Hard Cover | 0 | 1 | 1 | 0 | MHF-756 | MHF-D6 | 0 |
Keuffel & Esser | IL Slide Rule Indicator, I Beam in pieces | 1933 | from 4092 86 end | USA | No Value | 0.0 | Plastic | 1 | 0 | 1 | 0 | | | 0 |
Keuffel & Esser | IL Slide Rule Indicator | 1932 | In IL Box | USA | Magnifier | 0 | Plastic | 1 | 0 | 1 | 0 | | | 0 |
Keuffel & Esser | IL Slide Rule Indicator | 1932 | In IL Box | USA | Magnifier | 0.0 | Plastic | 1 | 0 | 1 | 1 | | | 0 |
Keuffel & Esser | I Slide Rule Indicator, Column Cursor in pieces | 1913 | from 4092 86 end | USA | Magnifier | 0.0 | Metal | 1 | 0 | 1 | 1 | ISRM | ISRM | 0 |
Keuffel & Esser | Henning Pocket Recorder | 0 | 15 | USA | Other | 0.0 | Metal | 0 | 1 | 0 | 0 | MHF-777 | Bookcase-2 | 0 |
Keuffel & Esser | F 4236 Compensating Polar E | 1954 | 48799 E 1647 | USA | Planimeter | 217.8 | Metal | 0 | 0 | 1 | 0 | MHF-448 | MHF-D14 | 0 |
Keuffel & Esser | EL Slide Rule Indicator | 0 | On 4051 | USA | Magnifier | 0 | Plastic | 0 | 0 | 1 | 0 | | | 0 |
Keuffel & Esser | EL Slide Rule Indicator | 0 | | USA | Magnifier | 0 | Plastic | 0 | 0 | 1 | 0 | | | 0 |
Keuffel & Esser | EL Slide Rule Indicator | 0 | On 4041 TCL | USA | Magnifier | 0 | Plastic | 0 | 0 | 1 | 0 | | | 0 |
Keuffel & Esser | EL Slide Rule Indicator | 0 | | USA | Magnifier | 0 | Plastic | 0 | 0 | 1 | 1 | | | 0 |
Keuffel & Esser | D68 1617 Polyphase Mannheim Decitrig | 1960 | 660040 | USA | Linear | 25.0 | Wood | 0 | 1 | 1 | 0 | MHF-123 | MHF-D2 | 1 |
Keuffel & Esser | D68 1617 Polyphase Mannheim Decitrig | 1965 | 030078 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-73 | MHF-D2 | 1 |
Keuffel & Esser | D4053-3 Polyphase Mannheim Decitrig | 1957 | 320464 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-71 | MHF-D2 | 1 |
Keuffel & Esser | D4053-3 Polyphase Mannheim Decitrig | 1957 | 320221 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-72 | MHF-D2 | 1 |
Keuffel & Esser | D Slide Rule Indicator | 1922 | | USA | Magnifier | 0 | Plastic | 0 | 0 | 1 | 0 | | | 0 |
Keuffel & Esser | Celcon Doric (68 1550) | 1962 | 620214 | USA | Linear | 12.5 | Plastic | 1 | 1 | 1 | 0 | MHF-147 | MHF-D4 | 0 |
Keuffel & Esser | Celcon Doric (68 1550) | 1972 | | USA | Linear | 12.5 | Plastic | 1 | 1 | 0 | 0 | MHF-148 | MHF-D4 | 0 |
Keuffel & Esser | Brick-O-Meter, Mackensen C. Co. Inc. Instructions | 1938 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-702 | MHF-D10 | 0 |
Keuffel & Esser | Brick-O-Meter, Mackensen C. Co. Inc. | 1938 | | USA | Special | 24.2 | Wood | 0 | 1 | 0 | 0 | MHF-265 | MHF-D10 | 0 |
Keuffel & Esser | Bellevillw Spring Washer Computer | 1967 | | USA | Special | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-593 | MHF-D8 | 0 |
Keuffel & Esser | Beatley I-Q Slide Rule | 1922 | | USA | Special | 19.0 | Wood | 0 | 0 | 0 | 0 | MHF-264 | MHF-D10 | 0 |
Keuffel & Esser | American Mannheim | 0 | 63 end | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-97 | MHF-D3 | 1 |
Keuffel & Esser | American Mannheim | 0 | 97 E end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-98 | MHF-D3 | 1 |
Keuffel & Esser | 9071-3 Doric Polyphase Decitrig | 1952 | 013371 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-155 | MHF-D4 | 0 |
Keuffel & Esser | 9071-3 Doric Polyphase Decitrig | 1952 | 0012930 | USA | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-156 | MHF-D4 | 0 |
Keuffel & Esser | 9068 Doric Plastic Polyphase | 1947 | 056542 | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-144 | MHF-D4 | 0 |
Keuffel & Esser | 9068 Doric Plastic Polyphase | 1952 | 4823 | USA | Linear | 12.5 | Plastic | 1 | 1 | 0 | 0 | MHF-143 | MHF-D4 | 0 |
Keuffel & Esser | 9061-1 Doric Mannheim | 1949 | 7486 | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-74 | MHF-D3 | 1 |
Keuffel & Esser | 8858 Mannheim Beginner's WWII special 1944 | 1942 | | USA | Linear | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-32 | MHF-D1 | 1 |
Keuffel & Esser | 8858 Mannheim Beginner's WWII special 1944 | 1942 | | USA | Linear | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-33 | MHF-D1 | 1 |
Keuffel & Esser | 8858 Mannheim Beginner's WWII special 1944 | 1942 | | USA | Linear | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-635 | Wright Museum | 0 |
Keuffel & Esser | 7L Indicator Glass | 0 | x3 | USA | Magnifier | 0 | No Value | 0 | 1 | 0 | 0 | | | 0 |
Keuffel & Esser | 69 1955 Deci-Lon Projection | 1967 | | USA | Linear | 20.0 | Plastic | 1 | 1 | 1 | 0 | MHF-283 | MHF-D12 | 0 |
Keuffel & Esser | 68 2233 (4185-17) Magnifier | 1966 | | USA | Magnifier | 0.0 | Metal | 0 | 0 | 1 | 0 | MHF-281 | MHF-D10 | 0 |
Keuffel & Esser | 68 1892 K-12 Prep Desk | 1972 | | USA | Linear | 25.0 | Plastic | 0 | 0 | 1 | 0 | MHF-36 | MHF-D2 | 1 |
Keuffel & Esser | 68 1892 K-12 Prep Desk | 1972 | | USA | Linear | 25.0 | Plastic | 0 | 0 | 0 | 0 | MHF-37 | MHF-D2 | 1 |
Keuffel & Esser | 68 1892 K-12 Prep | 1972 | | USA | Linear | 25.0 | Plastic | 0 | 0 | 0 | 0 | MHF-35 | MHF-D2 | 1 |
Keuffel & Esser | 68 1892 K-12 Prep | 1972 | | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-586 | Display | 0 |
Keuffel & Esser | 68 1791 (4150-1) Mannheim Merchant's | 1962 | 004929 | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-226 | MHF-D9 | 0 |
Keuffel & Esser | 68 1775 Merchant's | 1965 | 400370 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-231 | MHF-D9 | 0 |
Keuffel & Esser | 68 1775 Merchant's | 1965 | 300031 | USA | Linear | 25.0 | Wood | 0 | 1 | 1 | 0 | MHF-230 | MHF-D9 | 0 |
Keuffel & Esser | 68 1754 Mannheim Merchant's | 1964 | 970082 | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-233 | MHF-D9 | 0 |
Keuffel & Esser | 68 1749 Mannheim Merchant's | 1966 | 290013 | USA | Linear | 50.0 | Wood | 0 | 0 | 1 | 0 | MHF-536 | Top Flat Files | 0 |
Keuffel & Esser | 68 1643 (4153-1C) Polyphase Mannheim | 1962 | 018474 | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-39 | MHF-D1 | 1 |
Keuffel & Esser | 68 1622 (4053-3, 68 1617) Polyphase Mannheim | 1962 | 941324 | USA | Linear | 25.0 | Wood | 0 | 1 | 1 | 0 | MHF-70 | MHF-D2 | 1 |
Keuffel & Esser | 68 1617 (4053-3) Polyphase Mannheim | 1962 | 201058 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-69 | MHF-D2 | 1 |
Keuffel & Esser | 68 1608 Polyphase Mannheim | 1960 | 520285 | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-556 | MHF-D11 | 0 |
Keuffel & Esser | 68 1608 Polyphase Mannheim | 1968 | 200089 | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-107 | MHF-D11 | 0 |
Keuffel & Esser | 68 1586 (4161-1) Manheim | 1962 | 019198 | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-75 | MHF-D3 | 1 |
Keuffel & Esser | 68 1576 (4161-3) Mannheim | 1954 | 008308 | USA | Linear | 25.0 | Plastic | 0 | 1 | 1 | 0 | MHF-76 | MHF-D3 | 1 |
Keuffel & Esser | 68 1565 GP12 | 1967 | 033613 | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-222 | MHF-D8 | 0 |
Keuffel & Esser | 68 1555 Polyphase Doric | 1966 | 037383 | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-594 | MHF-D4 | 0 |
Keuffel & Esser | 68 1497 Polyphase Decitrig | 1959 | 540106 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-154 | MHF-D4 | 0 |
Keuffel & Esser | 68 1486 (4143) Kissam Stadia | 1962 | 398915 | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-242 | MHF-D9 | 0 |
Keuffel & Esser | 68 1460 Cooke Radio Rule | 1962 | 790157 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-253 | MHF-D10 | 0 |
Keuffel & Esser | 68 1434 Log Log Vector | 1962 | 460048 | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 0 | MHF-204 | MHF-D6 | 0 |
Keuffel & Esser | 68 1400 Analon | 1966 | 004661 | USA | Linear | 25.0 | Plastic | 0 | 1 | 1 | 0 | MHF-223 | Cabinet | 0 |
Keuffel & Esser | 68 1318 Log Log Trig | 1963 | 850517 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-186 | MHF-D5 | 0 |
Keuffel & Esser | 68 1282 (4181-1C) Log Log Decitrig | 1965 | 073387 | USA | Linear | 12.5 | Plastic | 1 | 1 | 1 | 0 | MHF-160 | MHF-D4 | 0 |
Keuffel & Esser | 68 1256 Log Log Duplex Decitrig - Old 4181-3 | 1962 | 034165 | USA | Linear | 25.0 | Plastic | 1 | 1 | 1 | 0 | MHF-197 | MHF-D6 | 0 |
Keuffel & Esser | 68 1256 Jet-Log | 1966 | 124832 | USA | Linear | 25.0 | Plastic | 1 | 1 | 1 | 0 | MHF-199 | MHF-D6 | 0 |
Keuffel & Esser | 68 1251 Jet-Log | 1962 | 119342 | USA | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-198 | MHF-D6 | 0 |
Keuffel & Esser | 68 1210 Log Log Decitrig | 1956 | 270158 | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 0 | MHF-192 | MHF-D6 | 0 |
Keuffel & Esser | 68 1210 Log Log Decitrig | 1958 | 320384 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-191 | MHF-D6 | 0 |
Keuffel & Esser | 68 1200 Log Log Decitrig | 1959 | 480149 | USA | Linear | 50.0 | Wood | 1 | 1 | 0 | 0 | MHF-212 | MHF-D7 | 0 |
Keuffel & Esser | 68 1130 Deci-Lon | 1961 | 022454 | USA | Linear | 12.5 | Plastic | 1 | 1 | 0 | 0 | MHF-214 | MHF-D8 | 0 |
Keuffel & Esser | 68 1130 Deci-Lon | 1961 | 036452 | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-215 | Cabinet | 0 |
Keuffel & Esser | 68 1100 Deci-Lon (no bars) | 1966 | 236464 | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-219 | MHF-D8 | 0 |
Keuffel & Esser | 68 1100 Deci-Lon (no bars) | 1966 | 262936 | USA | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-221 | MHF-D8 | 0 |
Keuffel & Esser | 68 1100 Deci-Lon (no bars) | 1966 | 244573 | USA | Linear | 25.0 | Paper | 1 | 0 | 0 | 0 | MHF-220 | MHF-D8 | 0 |
Keuffel & Esser | 68 1100 Deci-Lon | 1962 | 134429 | USA | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-218 | MHF-D8 | 0 |
Keuffel & Esser | 68 1100 Deci-Lon | 1962 | 013952 | USA | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-216 | MHF-D8 | 0 |
Keuffel & Esser | 68 1100 Deci-Lon | 1962 | 28536 | USA | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-571 | Display | 0 |
Keuffel & Esser | 68 1100 Deci-Lon | 1962 | 096252 | USA | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-217 | MHF-D8 | 0 |
Keuffel & Esser | 68 1100 Deci-Lon | 1962 | 198975 | USA | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-557 | MHF-D8 | 0 |
Keuffel & Esser | 62000 Compensating Polar | 1962 | 95 229 | Germany | Planimeter | 260.2 | Metal | 0 | 0 | 1 | 0 | MHF-484 | MHF-D14 | 0 |
Keuffel & Esser | 6-C-1 US Navy (4168 Projection) | 1957 | | USA | Linear | 20.0 | Plastic | 0 | 1 | 0 | 0 | MHF-283 | MHF-D12 | 0 |
Keuffel & Esser | 4185C | 0 | w/ N4081-3 519945 | USA | Magnifier | 0.0 | Metal | 0 | 0 | 1 | 0 | MHF-569 | Display | 0 |
Keuffel & Esser | 4185C | 0 | | USA | Magnifier | 0.0 | Metal | 0 | 0 | 1 | 0 | MHF-278 | MHF-D10 | 0 |
Keuffel & Esser | 4185B | 0 | w/ N4053-3 043255 | USA | Magnifier | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-552 | MHF-D2 | 1 |
Keuffel & Esser | 4185B | 0 | | USA | Magnifier | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-276 | MHF-D10 | 0 |
Keuffel & Esser | 4185B | 0 | w/ N4053-3 012841 | USA | Magnifier | 0.0 | Metal | 0 | 0 | 1 | 0 | MHF-587 | MHF-D2 | 1 |
Keuffel & Esser | 4185B | 0 | | USA | Magnifier | 0.0 | Metal | 0 | 0 | 1 | 0 | MHF-275 | MHF-D10 | 0 |
Keuffel & Esser | 4185B | 0 | | USA | Magnifier | 0.0 | Metal | 0 | 0 | 1 | 0 | MHF-277 | MHF-D10 | 0 |
Keuffel & Esser | 4185-7 | 0 | | USA | Magnifier | 0.0 | Metal | 0 | 1 | 1 | 0 | MHF-279 | MHF-D10 | 0 |
Keuffel & Esser | 4185-17 | 0 | | USA | Magnifier | 0.0 | Metal | 0 | 1 | 1 | 0 | MHF-280 | MHF-D10 | 0 |
Keuffel & Esser | 4183B Belt Carrier | 0 | | USA | No Value | 0.0 | Metal | 0 | 0 | 1 | 0 | MHF-282 | MHF-D10 | 0 |
Keuffel & Esser | 4181-3 Log Log Decitrig | 1954 | 001578 | USA | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-195 | MHF-D6 | 0 |
Keuffel & Esser | 4181-3 Log Log Decitrig | 1954 | 015574 | USA | Linear | 25.0 | Plastic | 1 | 1 | 1 | 0 | MHF-196 | MHF-D6 | 0 |
Keuffel & Esser | 4181-1C Log Log Dectrig | 1954 | 013986 | USA | Linear | 12.5 | Plastic | 1 | 1 | 1 | 0 | MHF-159 | MHF-D4 | 0 |
Keuffel & Esser | 4181-1 Log Log Decitrig | 1954 | 29473 | USA | Linear | 12.5 | Plastic | 1 | 0 | 1 | 0 | MHF-158 | MHF-D4 | 0 |
Keuffel & Esser | 4181-1 Log Log Decitrig | 1955 | 029974 | USA | Linear | 12.5 | Plastic | 1 | 1 | 0 | 0 | MHF-157 | MHF-D4 | 0 |
Keuffel & Esser | 4175 Kurtz Psychrometic | 1938 | | USA | Linear | 23.0 | Wood | 0 | 1 | 0 | 1 | MHF-263 | MHF-D10 | 0 |
Keuffel & Esser | 4168 Polyphase Doric | 1954 | 009990 | USA | Linear | 12.5 | Plastic | 1 | 0 | 0 | 0 | MHF-146 | MHF-D4 | 0 |
Keuffel & Esser | 4168 Polyphase Doric | 1958 | 424114 | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-145 | MHF-D4 | 0 |
Keuffel & Esser | 4161-3 Mannheim | 1954 | 025172 | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-77 | MHF-D3 | 1 |
Keuffel & Esser | 4161-3 Mannheim | 1954 | 023720 | USA | Linear | 25.0 | Paper | 0 | 1 | 0 | 0 | MHF-78 | MHF-D3 | 1 |
Keuffel & Esser | 4161-1 Polyphase Mannheim | 1954 | 40220 | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 1 | MHF-109 | MHF-D3 | 1 |
Keuffel & Esser | 4161-1 Polyphase Mannheim | 1954 | 024555 | USA | Linear | 12.5 | Plastic | 0 | 0 | 0 | 1 | MHF-108 | MHF-D3 | 1 |
Keuffel & Esser | 4160 Chemist's Slide Rule | 1923 | 18270 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-262 | MHF-D10 | 0 |
Keuffel & Esser | 4160 Chemist's Slide Rule | 1932 | 284731 | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 1 | MHF-636 | MHF-D10 | 0 |
Keuffel & Esser | 4160 Chemist's Slide Rule | 1932 | 355964 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-261 | MHF-D10 | 0 |
Keuffel & Esser | 4158 K-12 Prep | 1961 | | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-34 | MHF-D2 | 1 |
Keuffel & Esser | 4158 K-12 Prep | 1961 | | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-592 | MHF-D2 | 1 |
Keuffel & Esser | 4158 K-12 Prep | 1961 | | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-591 | MHF-D2 | 1 |
Keuffel & Esser | 4153-1 Polyphase Mannheim | 1959 | 064995 | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-38 | MHF-D1 | 1 |
Keuffel & Esser | 4150-1 Mannheim Merchant's | 1954 | 002878 | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-225 | MHF-D9 | 0 |
Keuffel & Esser | 4150-1 Mannheim Merchant's | 1954 | 4293 Pat Pend | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-224 | MHF-D9 | 0 |
Keuffel & Esser | 4150-1 (9050-1) Mannheim Merchant's | 1954 | 009583 | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-227 | MHF-D9 | 0 |
Keuffel & Esser | 4141 Hudson's Horse Power Computing Scale | 1913 | Stanley London | UK | Special | 10.7 | Wood | 0 | 1 | 0 | 0 | MHF-544 | Cabinet | 1 |
Keuffel & Esser | 4139 Cooke Radio Rule | 1946 | 313985 | USA | Linear | 25.0 | Wood | 1 | 1 | 1 | 0 | MHF-249 | MHF-D10 | 0 |
Keuffel & Esser | 4139 Cooke Radio Rule | 1948 | 496748 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-252 | MHF-D10 | 0 |
Keuffel & Esser | 4139 Cooke Radio Rule | 1957 | 363799 | USA | Linear | 25.0 | Wood | 1 | 1 | 1 | 0 | MHF-250 | MHF-D10 | 0 |
Keuffel & Esser | 4139 Cooke Radio Rule | 1958 | 452405 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-251 | MHF-D10 | 0 |
Keuffel & Esser | 4139 Cooke Radio Rule | 1962 | 775559 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 1 | MHF-584 | Display | 0 |
Keuffel & Esser | 4135 Power Computing | 1932 | 361628 | USA | Linear | 12.5 | Wood | 1 | 1 | 0 | 0 | MHF-260 | MHF-D10 | 0 |
Keuffel & Esser | 4133 Mannheim Roy Lance Electrican's | 1922 | 347 End | USA | Linear | 20.0 | Wood | 0 | 0 | 0 | 0 | MHF-254 | MHF-D10 | 0 |
Keuffel & Esser | 4110 Power Trig | 1940 | 800046 | USA | Linear | 33.5 | Wood | 0 | 0 | 0 | 0 | MHF-99 | MHF-D13 | 1 |
Keuffel & Esser | 4104 Special Production Slide Rule of Military Use | 1955 | 044175 | USA | Linear | 50.0 | Wood | 0 | 0 | 0 | 0 | MHF-291 | MHF-D7 | 0 |
Keuffel & Esser | 4102 Surveyor's | 1923 | 62 end | USA | Linear | 50.0 | Wood | 1 | 0 | 1 | 0 | MHF-246 | MHF-D9 | 0 |
Keuffel & Esser | 4102 Surveyor's | 1925 | 41498 | USA | Linear | 50.0 | Wood | 1 | 1 | 0 | 0 | MHF-247 | MHF-D9 | 0 |
Keuffel & Esser | 4101 Mannheim Stadia | 1914 | 46 end | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-243 | MHF-D9 | 0 |
Keuffel & Esser | 4101 Mannheim Stadia | 1923 | 130 end | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-244 | MHF-D9 | 0 |
Keuffel & Esser | 4100 Mannheim Stadia | 1957 | 290831 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-240 | MHF-D9 | 0 |
Keuffel & Esser | 4100 Mannheim Stadia | 1957 | 230106 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-239 | MHF-D9 | 0 |
Keuffel & Esser | 4100 Mannheim Stadia | 1958 | 433578 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-241 | MHF-D9 | 0 |
Keuffel & Esser | 4098A Mannheim "Pocket" | 1943 | 48232 | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-83 | MHF-D3 | 1 |
Keuffel & Esser | 4098A Mannheim "Pocket" | 1943 | 95097 | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-82 | MHF-D3 | 1 |
Keuffel & Esser | 4098 Mannheim "EverThere" | 1935 | 18425 | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-80 | MHF-D3 | 1 |
Keuffel & Esser | 4098 Mannheim "EverThere" | 1935 | 32162 | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-79 | MHF-D3 | 1 |
Keuffel & Esser | 4097D Mannheim Ever-There | 1944 | 89125 | USA | Linear | 12.5 | Paper | 0 | 1 | 0 | 1 | MIT | MIT | 0 |
Keuffel & Esser | 4097D Mannheim Ever-There | 1944 | 019432 John W. Futral | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-89 | MHF-D3 | 1 |
Keuffel & Esser | 4097D Mannheim Ever-There | 1946 | 146320 U.S. Electrical Motors Inc. | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-90 | MHF-D3 | 1 |
Keuffel & Esser | 4097D Mannheim Ever-There | 1954 | 105130 | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-88 | MHF-D3 | 1 |
Keuffel & Esser | 4097C Mannheim Ever-There | 1943 | 009962 | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-87 | MHF-D3 | 1 |
Keuffel & Esser | 4097C Mannheim Ever-There | 1943 | 27705 | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-86 | MHF-D3 | 1 |
Keuffel & Esser | 4097B Merchant's Ever-There | 1943 | 64232 | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-84 | MHF-D3 | 1 |
Keuffel & Esser | 4097B Merchant's Ever-There | 1954 | 033393 | USA | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-85 | MHF-D3 | 1 |
Keuffel & Esser | 4095-3 Merchant's | 1928 | 253609 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-237 | MHF-D9 | 0 |
Keuffel & Esser | 4095-1 Merchant's | 1927 | 130339 | USA | Linear | 12.5 | Wood | 1 | 0 | 0 | 0 | MHF-234 | MHF-D9 | 0 |
Keuffel & Esser | 4095 Merchant's | 1921 | 14 end | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 0 | MHF-235 | MHF-D9 | 0 |
Keuffel & Esser | 4094 Merchant's | 1935 | 561521 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-228 | MHF-D9 | 0 |
Keuffel & Esser | 4094 Merchant's | 1950 | 590046 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-229 | MHF-D9 | 0 |
Keuffel & Esser | 4093-3 Log Log Vector | 1935 | 521109 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-200 | MHF-D6 | 0 |
Keuffel & Esser | 4093-3 Log Log Vector | 1936 | 548842 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-201 | MHF-D6 | 0 |
Keuffel & Esser | 4092-5 Log Log | 1923 | 62988 | USA | Linear | 50.0 | Wood | 1 | 0 | 1 | 0 | MHF-205 | MHF-D7 | 0 |
Keuffel & Esser | 4092-3 Log Log (Tabbed Cursor) | 1936 | 400616 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-173 | MHF-D5 | 0 |
Keuffel & Esser | 4092-3 Log Log | 1922 | 8013 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-174 | MHF-D5 | 0 |
Keuffel & Esser | 4092-3 Log Log | 1922 | 8990 24S end | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-170 | MHF-D5 | 0 |
Keuffel & Esser | 4092-3 Log Log | 1923 | 130851 | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 0 | MHF-172 | MHF-D5 | 0 |
Keuffel & Esser | 4092-3 Log Log | 1925 | 118377 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-176 | MHF-D5 | 0 |
Keuffel & Esser | 4092-3 Log Log | 1936 | 339820 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-171 | MHF-D5 | 0 |
Keuffel & Esser | 4092-3 Log Log | 1936 | 405149 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-175 | MHF-D5 | 0 |
Keuffel & Esser | 4092-3 Log Log | 1936 | 504659 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-177 | MHF-D5 | 0 |
Keuffel & Esser | 4092 Log Log (Column Cursor) | 1914 | 21 end | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 0 | MHF-165 | MHF-D5 | 0 |
Keuffel & Esser | 4092 Log Log (Column Cursor) | 1914 | 141 end | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 0 | MHF-164 | MHF-D5 | 0 |
Keuffel & Esser | 4092 Log Log (Clamshell Cursor) | 1913 | 19x end | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-162 | MHF-D5 | 0 |
Keuffel & Esser | 4092 Log Log (Clamshell Cursor) | 1913 | 142 end | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 0 | MHF-163 | MHF-D5 | 0 |
Keuffel & Esser | 4092 Log Log | 1914 | 86 end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 1 | MHF-169 | MHF-D5 | 0 |
Keuffel & Esser | 4092 Log Log | 1921 | 187 end | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 1 | MHF-167 | MHF-D5 | 0 |
Keuffel & Esser | 4092 Log Log | 1921 | 131 end | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-166 | MHF-D5 | 0 |
Keuffel & Esser | 4092 Log Log | 1921 | 79 end | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-168 | MHF-D5 | 0 |
Keuffel & Esser | 4091-3 Log Log DeciTrig, (I Beam) | 1934 | 455753 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-181 | MHF-D5 | 0 |
Keuffel & Esser | 4091-3 Log Log DeciTrig | 1933 | 456584 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-179 | MHF-D5 | 0 |
Keuffel & Esser | 4091-3 Log Log DeciTrig | 1934 | 474048 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-180 | MHF-D5 | 0 |
Keuffel & Esser | 4090-3 Log Log Trig | 1934 | 470428 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-178 | MHF-D5 | 0 |
Keuffel & Esser | 4088-5 Polyphase | 1921 | 44 end | USA | Linear | 50.0 | Wood | 1 | 1 | 0 | 0 | MHF-140 | MHF-D11 | 0 |
Keuffel & Esser | 4088-5 Polyphase | 1921 | 63 end | USA | Linear | 50.0 | Wood | 1 | 1 | 0 | 1 | MHF-575 | Display | 0 |
Keuffel & Esser | 4088-5 Polyphase | 1921 | 11 End | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-139 | MHF-D11 | 0 |
Keuffel & Esser | 4088-5 Polyphase | 1923 | 54790 | USA | Linear | 50.0 | Wood | 1 | 0 | 0 | 1 | MHF-607 | MHF-D11 | 0 |
Keuffel & Esser | 4088-3 Polyphase (Metal Cursor) | 1915 | 165 end | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 1 | MHF-135 | MHF-D4 | 0 |
Keuffel & Esser | 4088-3 Polyphase (I-Beam Cursor) | 1938 | 382044 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 1 | MHF-137 | MHF-D4 | 0 |
Keuffel & Esser | 4088-3 Polyphase (Column Cursor) | 1914 | 31 end | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-134 | MHF-D4 | 0 |
Keuffel & Esser | 4088-3 Polyphase (Column Cursor) | 1915 | 88 x end | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-133 | MHF-D4 | 0 |
Keuffel & Esser | 4088-3 Polyphase | 1921 | 593 end | USA | Linear | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-574 | Display | 0 |
Keuffel & Esser | 4088-3 Polyphase | 1923 | 77733 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-138 | MHF-D4 | 0 |
Keuffel & Esser | 4088-3 Polyphase | 1925 | 77086 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-136 | MHF-D4 | 0 |
Keuffel & Esser | 4088-2 Polyphase (Metal Cursor) | 1915 | 63 end | USA | Linear | 20.0 | Wood | 0 | 1 | 0 | 0 | MHF-131 | MHF-D4 | 0 |
Keuffel & Esser | 4088-2 Polyphase (Column Cursor) | 1914 | 70 end | USA | Linear | 20.0 | Wood | 1 | 1 | 0 | 1 | MHF-130 | MHF-D4 | 0 |
Keuffel & Esser | 4088-2 Polyphase | 1928 | 38 end | USA | Linear | 20.0 | Wood | 1 | 1 | 0 | 0 | MHF-274 | MHF-D4 | 0 |
Keuffel & Esser | 4088-2 Polyphase | 1928 | 179874 | USA | Linear | 20.0 | Wood | 1 | 1 | 0 | 1 | MHF-132 | MHF-D4 | 0 |
Keuffel & Esser | 4088-2 Polyphase | 1929 | 241354 | USA | Linear | 20.0 | Wood | 0 | 1 | 1 | 0 | MHF-573 | Display | 0 |
Keuffel & Esser | 4088-1 Polyphase | 1922 | 93 end | USA | Linear | 12.5 | Wood | 1 | 1 | 0 | 0 | MHF-124 | MHF-D4 | 0 |
Keuffel & Esser | 4088-1 Polyphase | 1924 | 13 end | USA | Linear | 12.5 | Wood | 1 | 1 | 0 | 0 | MHF-125 | MHF-D4 | 0 |
Keuffel & Esser | 4088-1 Polyphase | 1929 | 224775 | USA | Linear | 12.5 | Wood | 1 | 1 | 0 | 1 | MHF-127 | MHF-D4 | 0 |
Keuffel & Esser | 4088-1 Polyphase | 1929 | 298444 | USA | Linear | 12.5 | Wood | 1 | 1 | 0 | 0 | MHF-129 | MHF-D4 | 0 |
Keuffel & Esser | 4088-1 Polyphase | 1929 | 221666 | USA | Linear | 12.5 | Wood | 1 | 1 | 0 | 0 | MHF-572 | Display | 0 |
Keuffel & Esser | 4088-1 Polyphase | 1929 | 191776 | USA | Linear | 12.5 | Wood | 1 | 1 | 0 | 0 | MHF-126 | MHF-D4 | 0 |
Keuffel & Esser | 4088-1 Polyphase | 1933 | 362571 | USA | Linear | 12.5 | Wood | 1 | 0 | 0 | 0 | MHF-128 | MHF-D4 | 0 |
Keuffel & Esser | 4087T Polyphase (Clamshell Cursor) | 1916 | 27 end | USA | Linear | 50.0 | Wood | 1 | 0 | 1 | 0 | MHF-780 | MHF-D3 | 0 |
Keuffel & Esser | 4087 Polyphase (Column Cursor) | 1914 | 11 end | USA | Linear | 50.0 | Wood | 1 | 1 | 0 | 0 | MHF-119 | MHF-D3 | 0 |
Keuffel & Esser | 4087 Polyphase | 1916 | 43 end | USA | Linear | 50.0 | Wood | 1 | 0 | 0 | 0 | MHF-161 | MHF-D3 | 0 |
Keuffel & Esser | 4087 Polyphase | 1916 | 41 end | USA | Linear | 50.0 | Wood | 1 | 0 | 1 | 0 | MHF-120 | MHF-D3 | 0 |
Keuffel & Esser | 4087 Polyphase | 1916 | 41 end | USA | Linear | 50.0 | Wood | 1 | 0 | 1 | 0 | MHF-121 | MHF-D3 | 0 |
Keuffel & Esser | 4085C | 1914 | On 4087 Column Cursor | USA | Magnifier | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-554 | MHF-D3 | 0 |
Keuffel & Esser | 4085C | 1914 | On 4092 Column Cursor | USA | Magnifier | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-555 | MHF-D5 | 0 |
Keuffel & Esser | 4085B | 1922 | Early w/ N4053-3F 472x | USA | Magnifier | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-551 | MHF-D2 | 1 |
Keuffel & Esser | 4085B | 1922 | Early w/ N4053-2 68048 | USA | Magnifier | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-550 | MHF-D2 | 1 |
Keuffel & Esser | 4085A | 1925 | Early w/ 4031 sn 97196 | USA | Magnifier | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-558 | Cabinet | 0 |
Keuffel & Esser | 4083-5 Log Log Vector | 1943 | 945538 | USA | Linear | 50.0 | Wood | 1 | 1 | 0 | 0 | MHF-213 | MHF-D7 | 0 |
Keuffel & Esser | 4083-3 Log Log Vector | 1946 | 257986 | USA | Linear | 25.0 | Wood | 1 | 1 | 1 | 1 | MHF-202 | MHF-D6 | 0 |
Keuffel & Esser | 4083-3 Log Log Vector | 1949 | 534971 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 1 | MHF-570 | Display | 0 |
Keuffel & Esser | 4083 Polyphase (Column Cursor) | 1915 | 42 End | USA | Linear | 40.0 | Wood | 1 | 1 | 0 | 0 | MHF-118 | MHF-D3 | 0 |
Keuffel & Esser | 4082-3 Radio Special | 1940 | 834533 Naval TR. School 299 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-257 | MHF-D10 | 0 |
Keuffel & Esser | 4082-3 Radio Special | 1940 | 867096 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-258 | MHF-D10 | 0 |
Keuffel & Esser | 4081-5 Log Log Decitrig | 1954 | 976246 | USA | Linear | 50.0 | Wood | 1 | 0 | 0 | 0 | MHF-210 | MHF-D7 | 0 |
Keuffel & Esser | 4081-5 Log Log Decitrig | 1955 | 5156 | USA | Linear | 50.0 | Wood | 1 | 1 | 0 | 0 | MHF-211 | MHF-D7 | 0 |
Keuffel & Esser | 4081-3 Log Log Decitrig | 1949 | 690721 | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 1 | MHF-187 | MHF-D6 | 0 |
Keuffel & Esser | 4081-3 Log Log Decitrig | 1955 | 859163 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-188 | MHF-D6 | 0 |
Keuffel & Esser | 4080-5 Log Log Trig | 1946 | 317656 | USA | Linear | 50.0 | Wood | 1 | 1 | 0 | 0 | MHF-209 | MHF-D7 | 0 |
Keuffel & Esser | 4080-3 Log Log Trig | 1935 | 559197 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-182 | MHF-D5 | 0 |
Keuffel & Esser | 4080-3 Log Log Trig | 1946 | 296511 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-567 | Display | 0 |
Keuffel & Esser | 4080-3 Log Log Trig | 1950 | 669436 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-183 | MHF-D5 | 0 |
Keuffel & Esser | 4071T Polyphase Trig (Column Cursor) | 1914 | 99 end | USA | Linear | 25.0 | Wood | 1 | 0 | 0 | 0 | MHF-117 | MHF-D3 | 1 |
Keuffel & Esser | 4071T Polyphase Trig (Clamshell Cursor) | 1912 | 77 end | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-115 | MHF-D3 | 1 |
Keuffel & Esser | 4071T Polyphase Trig | 1915 | 82 end | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-116 | MHF-D3 | 1 |
Keuffel & Esser | 4071-3S Polyphase Decitrig | 1958 | 186059 | USA | Linear | 25.0 | Wood | 1 | 1 | 1 | 1 | MHF-153 | MHF-D4 | 0 |
Keuffel & Esser | 4071-3 Polyphase Decitrig | 1944 | 106905 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-151 | MHF-D4 | 0 |
Keuffel & Esser | 4071-3 Polyphase Decitrig | 1946 | 292228 | USA | Linear | 25.0 | Wood | 1 | 1 | 1 | 0 | MHF-152 | MHF-D4 | 0 |
Keuffel & Esser | 4071 Polyphase | 1915 | 107 end | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-113 | MHF-D3 | 1 |
Keuffel & Esser | 4070-3 Polyphase Trig | 1939 | 705222 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-150 | MHF-D4 | 0 |
Keuffel & Esser | 4070-3 Polyphase Trig | 1952 | 889486 Arthur I. McRae | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-149 | MHF-D4 | 0 |
Keuffel & Esser | 4068 Duplex | 1906 | 9 end | USA | Linear | 20.0 | Wood | 1 | 1 | 0 | 0 | MHF-111 | Cabinet | 0 |
Keuffel & Esser | 4065T Polyphase Trig | 1916 | 89 end | USA | Linear | 20.0 | Wood | 1 | 1 | 0 | 1 | MHF-112 | MHF-D3 | 1 |
Keuffel & Esser | 4061T Polyphase Trig | 1916 | 28 end | USA | Linear | 12.5 | Wood | 1 | 1 | 0 | 1 | MHF-110 | MHF-D3 | 1 |
Keuffel & Esser | 4061 Polyphase Trig | 1916 | 81 end | USA | Linear | 12.5 | Wood | 1 | 1 | 0 | 1 | MHF-588 | MHF-D3 | 1 |
Keuffel & Esser | 4059 Beginner's Slide Rule | 1939 | | USA | Linear | 20.0 | Wood | 0 | 0 | 0 | 0 | MHF-273 | MHF-D1 | 1 |
Keuffel & Esser | 4058W Mannheim Beginner's | 1934 | | USA | Linear | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-26 | MHF-D1 | 1 |
Keuffel & Esser | 4058W Mannheim Beginner's | 1943 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-29 | MHF-D1 | 1 |
Keuffel & Esser | 4058W Mannheim Beginner's | 1943 | | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-585 | Display | 0 |
Keuffel & Esser | 4058W Mannheim Beginner's | 1943 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-28 | MHF-D1 | 1 |
Keuffel & Esser | 4058W Mannheim Beginner's | 1943 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-27 | MHF-D1 | 1 |
Keuffel & Esser | 4058W Mannheim Beginner's | 1959 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-589 | MHF-D1 | 1 |
Keuffel & Esser | 4058D BeginnerÂ’s | 1942 | | USA | Linear | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-549 | MHF-D1 | 1 |
Keuffel & Esser | 4058C Beginner's | 1941 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-25 | MHF-D1 | 1 |
Keuffel & Esser | 4058C Beginner's | 1941 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-24 | MHF-D1 | 1 |
Keuffel & Esser | 4058C Beginner's | 1941 | | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-23 | MHF-D1 | 1 |
Keuffel & Esser | 4058 Mannheim Student's | 1915 | | USA | Linear | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-590 | MHF-D1 | 1 |
Keuffel & Esser | 4058 Mannheim Student's | 1922 | | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-22 | MHF-D1 | 1 |
Keuffel & Esser | 4058 Mannheim Student's | 1922 | | USA | Linear | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-21 | MHF-D1 | 1 |
Keuffel & Esser | 4056 Favorite Mannheim Type 1 | 1922 | 63 End | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-548 | MHF-D3 | 1 |
Keuffel & Esser | 4056 Favorite Mannheim | 1949 | 758469 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-95 | MHF-D3 | 1 |
Keuffel & Esser | 4055 Favorite Mannheim | 1936 | 524406 | USA | Linear | 25.0 | Wood | 0 | 1 | 1 | 0 | MHF-93 | MHF-D3 | 1 |
Keuffel & Esser | 4055 Favorite Mannheim | 1937 | 625594 | USA | Linear | 25.0 | Wood | 0 | 1 | 1 | 0 | MHF-94 | MHF-D3 | 1 |
Keuffel & Esser | 4054 Polyphase Mannheim | 1948 | 446303 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-96 | MHF-D3 | 1 |
Keuffel & Esser | 4054 Favorite | 1914 | 429 end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-92 | MHF-D3 | 1 |
Keuffel & Esser | 4054 Favorite | 1914 | 623 end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-91 | MHF-D3 | 1 |
Keuffel & Esser | 4053-5 Polyphase Mannheim | 1921 | 2? end | USA | Linear | 50.0 | Wood | 0 | 0 | 0 | 0 | MHF-553 | MHF-D11 | 0 |
Keuffel & Esser | 4053-5 Polyphase Mannheim | 1921 | 41 end | USA | Linear | 50.0 | Wood | 0 | 0 | 0 | 0 | MHF-538 | MHF-D11 | 0 |
Keuffel & Esser | 4053-5 Polyphase Mannheim | 1958 | 480009 | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-106 | MHF-D11 | 0 |
Keuffel & Esser | 4053-3F Polyphase Mannheim | 1922 | 427x end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-59 | MHF-D2 | 1 |
Keuffel & Esser | 4053-3 Polyphase Mannheim, Metal Cursor | 1915 | 386 | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-55 | MHF-D2 | 1 |
Keuffel & Esser | 4053-3 Polyphase Mannheim | 1912 | 794 end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-53 | MHF-D2 | 1 |
Keuffel & Esser | 4053-3 Polyphase Mannheim | 1913 | 106x end, Ed Chamberlian | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-54 | MHF-D2 | 1 |
Keuffel & Esser | 4053-3 Polyphase Mannheim | 1921 | 317 X end & 12 end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-56 | MHF-D2 | 1 |
Keuffel & Esser | 4053-3 Polyphase Mannheim | 1921 | 114 end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-58 | MHF-D2 | 1 |
Keuffel & Esser | 4053-3 Polyphase Mannheim | 1921 | 21 end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-57 | MHF-D2 | 1 |
Keuffel & Esser | 4053-3 Polyphase Mannheim | 1921 | 862 end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-565 | Display | 0 |
Keuffel & Esser | 4053-2 Polyphase Mannheim | 1914 | 959 end - Conrad Shure | USA | Linear | 20.0 | Wood | 0 | 1 | 0 | 0 | MHF-597 | MHF-D2 | 1 |
Keuffel & Esser | 4053-2 Polyphase Mannheim | 1914 | 60 end | USA | Linear | 20.0 | Wood | 0 | 1 | 0 | 0 | MHF-48 | MHF-D2 | 1 |
Keuffel & Esser | 4053-2 Polyphase Mannheim | 1922 | 11 end | USA | Linear | 20.0 | Wood | 0 | 1 | 0 | 0 | MHF-49 | MHF-D2 | 1 |
Keuffel & Esser | 4053 Polyphase Mannheim | 1909 | 86X end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-52 | MHF-D1 | 1 |
Keuffel & Esser | 4053 Polyphase Mannheim | 1910 | 571 end | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-51 | MHF-D2 | 1 |
Keuffel & Esser | 4051 Mannheim | 1909 | 22 end | USA | Linear | 50.0 | Wood | 0 | 0 | 1 | 1 | MHF-47 | MHF-D11 | 0 |
Keuffel & Esser | 4051 Mannheim | 1914 | 198 end | USA | Linear | 50.0 | Wood | 0 | 0 | 0 | 0 | MHF-43 | MHF-D11 | 0 |
Keuffel & Esser | 4051 Mannheim | 1914 | 195 end | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-44 | MHF-D11 | 0 |
Keuffel & Esser | 4051 Mannheim | 1922 | 5 end | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 0 | MHF-46 | MHF-D11 | 0 |
Keuffel & Esser | 4051 Mannheim | 1922 | 54 end | USA | Linear | 50.0 | Wood | 0 | 1 | 0 | 1 | MHF-45 | MHF-D11 | 0 |
Keuffel & Esser | 4045 Mannheim | 1922 | 26 End | USA | Linear | 40.0 | Wood | 0 | 0 | 0 | 1 | MHF-41 | MHF-D11 | 1 |
Keuffel & Esser | 4045 Mannheim | 1922 | 85 End | USA | Linear | 40.0 | Wood | 0 | 0 | 0 | 0 | MHF-42 | MHF-D11 | 1 |
Keuffel & Esser | 4045 Mannheim | 1922 | 35 End | USA | Linear | 40.0 | Wood | 0 | 0 | 0 | 1 | MHF-40 | MHF-D11 | 1 |
Keuffel & Esser | 4045 Mannheim | 1922 | 31 end | USA | Linear | 40.0 | Wood | 0 | 0 | 0 | 0 | MHF-545 | MHF-D11 | 1 |
Keuffel & Esser | 4041F Mannheim | 1914 | 610 end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-12 | MHF-D1 | 1 |
Keuffel & Esser | 4041 Mannheim (Metal Cursor) | 1915 | 53 end | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-16 | MHF-D1 | 1 |
Keuffel & Esser | 4041 Mannheim | 1914 | 3 end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-15 | MHF-D1 | 1 |
Keuffel & Esser | 4041 Mannheim | 1914 | 217 end | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-14 | MHF-D1 | 1 |
Keuffel & Esser | 4041 Mannheim | 1914 | 606 end | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 1 | MHF-595 | MHF-D1 | 1 |
Keuffel & Esser | 4041 Mannheim | 1914 | 280 end | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-13 | MHF-D1 | 1 |
Keuffel & Esser | 4041 Mannheim | 1928 | 196998 T C Lewis | USA | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-539 | Rolltop | 1 |
Keuffel & Esser | 4035 Mannheim Dual-line Cursor | 1909 | 106+ end | USA | Linear | 20.0 | Wood | 0 | 1 | 0 | 1 | MHF-596 | MHF-D1 | 1 |
Keuffel & Esser | 4035 Mannheim | 1915 | 451 end | USA | Linear | 20.0 | Wood | 0 | 1 | 0 | 0 | MHF-11 | MHF-D1 | 1 |
Keuffel & Esser | 4035 Mannheim | 1915 | 30 end | USA | Linear | 20.0 | Wood | 0 | 1 | 0 | 0 | MHF-10 | MHF-D1 | 1 |
Keuffel & Esser | 4032 Mannheim (Magnifier) | 1906 | 45 end | USA | Linear | 12.5 | Wood | 0 | 1 | 0 | 0 | MHF-2 | Cabinet | 1 |
Keuffel & Esser | 4032 Mannheim (Chisel Point Magnifier) | 1900 | 2 72 end | USA | Linear | 12.5 | Wood | 0 | 0 | 0 | 0 | MHF-1 | Cabinet | 1 |
Keuffel & Esser | 4031F Mannheim | 1912 | 34 end | USA | Linear | 12.5 | Wood | 0 | 1 | 0 | 0 | MHF-3 | Cabinet | 1 |
Keuffel & Esser | 4031F Mannheim | 1915 | 32 end | USA | Linear | 12.5 | Wood | 0 | 0 | 0 | 0 | MHF-5 | MHF-D1 | 1 |
Keuffel & Esser | 4031F Mannheim | 1915 | 541 end | USA | Linear | 12.5 | Wood | 0 | 1 | 0 | 0 | MHF-4 | MHF-D1 | 1 |
Keuffel & Esser | 4031 Mannheim | 1923 | 193 end | USA | Linear | 12.5 | Wood | 0 | 1 | 0 | 0 | MHF-6 | MHF-D1 | 1 |
Keuffel & Esser | 4031 Mannheim | 1924 | 92607 | USA | Linear | 12.5 | Wood | 0 | 1 | 0 | 0 | MHF-7 | MHF-D1 | 1 |
Keuffel & Esser | 4031 Mannheim | 1924 | 95490 | USA | Linear | 12.5 | Wood | 0 | 1 | 0 | 0 | MHF-8 | MHF-D1 | 1 |
Keuffel & Esser | 4031 Mannheim | 1925 | 97196 | USA | Linear | 12.5 | Wood | 0 | 1 | 0 | 0 | MHF-9 | Cabinet | 1 |
Keuffel & Esser | 4017 Sperry's Pocket Calculator | 1941 | S714 | USA | Circular | 4.3 | Metal | 0 | 0 | 0 | 0 | MHF-266 | Cabinet | 0 |
Keuffel & Esser | 4012 ThacherÂ’s Calculating Instrument | 0 | 3980 | UK | Special | 46.0 | Wood | 0 | 0 | 1 | 0 | MHF-668 | Top Flat Files | 0 |
Keuffel & Esser | 4010 Stima Addiator | 1952 | 29577 | Switzerland | Additator | 0.0 | Metal | 0 | 0 | 0 | 1 | MHF-271 | Cabinet | 1 |
Keuffel & Esser | 1744B Wm Cox Duplex, Dual Slide Chissel Point | 1900 | 9 side | Germany | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-114 | Cabinet | 1 |
Keuffel & Esser / Acushnet Process Company | YoungÂ’s Specific Gravity & Compound Cost Calculator | 1913 | 50 End 31 Side | USA | Special | 12.5 | Wood | 0 | 0 | 0 | 0 | MHF-666 | MHF-D13 | 1 |
Keuffel & Esser / ECCO CO. | 10000 Doric Polyphase | 1946 | | USA | Linear | 12.5 | Plastic | 1 | 1 | 0 | 1 | MHF-142 | MHF-D4 | 0 |
Keuffel & Esser Manual | The SRT Scale | 1955 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-757 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Polyphase Slide Rule No. N4053 | 1944 | 6391 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-737 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Polyphase Duplex Slide Rule No. 4088 | 1938 | 60267-1940 SR 4088-3 382044 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-718 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Polar Planimeter | 1915 | 1276. i, a, ch. cM. | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-726 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Mannheim Slide Rule Complete Manual | 1903 | 540-Ks-x-sy-hME., ed Chamberlain | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-730 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Mannheim Slide Rule Complete Manual | 1917 | 1885. ch, o, co. sM. | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-729 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Mannheim Slide Rule Complete Manual | 1917 | 1608. s, a, cm. sM. | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-732 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Mannheim Slide Rule Complete Manual | 1917 | 1416. k, k, cx. sM. | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-731 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Mannheim Slide Rule | 1938 | 43343 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-735 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Mannheim and The Duplex Slide Rules | 1909 | 965, h. c c. k. aM. El | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-716 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Mannheim and The Duplex Slide Rules | 1909 | 965, h. c c. k. aM. El | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-717 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Mannheim & Polyphase Slide Rules | 1920 | 2465. cc,h,ks. sM. | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-734 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Mannheim & Polyphase Slide Rules | 1922 | 3158. a, y, kk. hM. | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-733 | MHF-D19 | 0 |
Keuffel & Esser Manual | The Ever-There Slide Rule No. 4097D | 1947 | 12644 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-724 | MHF-D19 | 0 |
Keuffel & Esser Manual | Suppl. Man. Cooke Radio No 4139 | 1942 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-741 | MHF-D19 | 0 |
Keuffel & Esser Manual | Slide Rules & Calculating Instruments | 1913 | 1030.ck. x, ca. sM | USA | Catalog | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-682 | MHF-D19 | 0 |
Keuffel & Esser Manual | Slide Rules & Calculating Instruments | 1930 | 4653-3 o,cc, ki, hM. | USA | Catalog | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-681 | MHF-D19 | 0 |
Keuffel & Esser Manual | Slide Rules & Calculating Instruments | 1942 | 93034 | USA | Catalog | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-683 | MHF-D19 | 0 |
Keuffel & Esser Manual | Polyphase-Duplex Slide Rule | 1913 | 1023. k, x, ca. h M. | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-715 | MHF-D19 | 0 |
Keuffel & Esser Manual | Polyphase Slide Rule No. N4053 | 1944 | 60247 2ed | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-738 | MHF-D19 | 0 |
Keuffel & Esser Manual | Polyphase No. 68 2063 Old 4187H | 1954 | 41671 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-740 | MHF-D19 | 0 |
Keuffel & Esser Manual | Polyphase Duplex Decitrig No. 68 2059 Old No. 4187X | 1947 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-722 | MHF-D19 | 0 |
Keuffel & Esser Manual | Polyphase Duplex Decitrig No. 68 2055 Old No. 4187U | 1962 | 7751 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-719 | MHF-D19 | 0 |
Keuffel & Esser Manual | Polyphase Duplex Decitrig No. 4071 | 1939 | 7241 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-720 | MHF-D19 | 0 |
Keuffel & Esser Manual | Polyphase Duplex Decitrig No. 4071 | 1939 | 7241 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-721 | MHF-D19 | 0 |
Keuffel & Esser Manual | Pocket Slide Rules - Brochure | 1962 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-747 | MHF-D19 | 0 |
Keuffel & Esser Manual | Pocket Slide Rules - Brochure | 1964 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-746 | MHF-D19 | 0 |
Keuffel & Esser Manual | Pocket Slide Rule 4150-1 Instructions | 1950 | 63895 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-758 | MHF-D19 | 0 |
Keuffel & Esser Manual | Pocket Slide Rule 4150-1 (Formerly 9050-1) Instructions | 1950 | 34161 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-761 | MHF-D19 | 0 |
Keuffel & Esser Manual | Modern Polyphase No. 68 2061 Old 4187Y | 1952 | 29872 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-739 | MHF-D19 | 0 |
Keuffel & Esser Manual | MerchantsÂ’ Slide Rule 68 1775 | 1960 | 23096-36C-1.5 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-759 | MHF-D19 | 0 |
Keuffel & Esser Manual | MerchantsÂ’ Pocket Slide Rule Instructions Manual No, 68 1791 | 1950 | 13215 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-762 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Vector Slide Rule | 1930 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-725 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Vector No. N4083 | 1939 | 34204+Suppl & SRT Scale | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-726 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Trig No. 4080 | 1943 | 41097 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-706 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Trig N4080-3 | 1948 | 94542 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-707 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Slide Rule | 1926 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-705 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Slide Rule | 1926 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 1 | MHF-704 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Decitrig No. N4081 | 1947 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-712 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Decitrig No. 68 2047 | 1955 | 66992 in 68 1251 box | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-755 | MHF-D6 | 0 |
Keuffel & Esser Manual | Log Log Duplex Decitrig No. 68 2047 | 1955 | 29244 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-724 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Decitrig No. 68 2047 | 1955 | 45670 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-713 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Decitrig No. 4081 | 1942 | 7724 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-714 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Decitrig No. 4081 | 1945 | 12,473. | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-708 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Decitrig No. 4081 | 1955 | 72536 see K&E 4181-3 015574 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-711 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Decitrig No. 4081 | 1955 | 2310 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-709 | MHF-D19 | 0 |
Keuffel & Esser Manual | Log Log Duplex Decitrig No. 4081 | 1955 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-710 | MHF-D19 | 0 |
Keuffel & Esser Manual | Learning to Use the Slide Rule | 1961 | S24 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-764 | MHF-D19 | 0 |
Keuffel & Esser Manual | Learning to Use the Slide Rule | 1961 | S24-2 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 1 | MHF-763 | MHF-D19 | 0 |
Keuffel & Esser Manual | K & E Price List, 42nd Edition | 1959 | 38478 | USA | Catalog | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-680 | MHF-D19 | 0 |
Keuffel & Esser Manual | K & E Price List, 37th Edition | 1928 | | USA | Catalog | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-703 | MHF-D19 | 0 |
Keuffel & Esser Manual | K & E Catalog 43rd Edition, section Slide Rules Catalog 8 | 1962 | | USA | Catalog | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-678 | MHF-D19 | 0 |
Keuffel & Esser Manual | K & E Catalog 42nd Edition, Part 1 | 1954 | Schaeffer, Hooton & Wilson | USA | Catalog | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-677 | Bookcase | 0 |
Keuffel & Esser Manual | K & E Catalog 42nd Edition | 1954 | Wm. C. Spinck, K&E Sales | USA | Catalog | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-676 | Bookcase | 0 |
Keuffel & Esser Manual | K & E Catalog 40th Edition | 1944 | Copy No. 37075 | USA | Catalog | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-675 | Bookcase | 0 |
Keuffel & Esser Manual | K & E Catalog 39th Interim Ed War Catalog | 1943 | R. W. Phipps | USA | Catalog | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-674 | Bookcase | 0 |
Keuffel & Esser Manual | K & E Catalog 38th Edition | 1936 | K. C. Fuller | USA | Catalog | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-673 | Bookcase | 0 |
Keuffel & Esser Manual | K & E Catalog 37th Edition | 1927 | Emile Tomlin | USA | Catalog | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-672 | Bookcase | 0 |
Keuffel & Esser Manual | K & E Catalog 36th Edition | 1921 | | USA | Catalog | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-671 | Bookcase | 0 |
Keuffel & Esser Manual | K & E Catalog 35th Edition | 1915 | The Dodd Co | USA | Catalog | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-670 | Bookcase | 0 |
Keuffel & Esser Manual | K & E Catalog 34th Edition | 1913 | L A Struigfield, Corning Cal | USA | Catalog | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-669 | Bookcase | 0 |
Keuffel & Esser Manual | Jetlog and Decitrig An Instruction Manual | 1955 | 41604 | USA | Manual | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-685 | Bookcase | 0 |
Keuffel & Esser Manual | Instructions for Use of Log Log Duplex Slide Rule | 1922 | 5009. ki, i, kh. cM. | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-728 | MHF-D19 | 0 |
Keuffel & Esser Manual | Inst for Oper Ever-There Slide Rule No. 4097C | 1936 | 12,059. S, cc,, yay. HM. | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-760 | MHF-D19 | 0 |
Keuffel & Esser Manual | How To Take Care Of Your Slide Rule | 1962 | S14-5 3 copies | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-745 | MHF-D19 | 0 |
Keuffel & Esser Manual | How to Choose a Slide Rule | 1940 | | USA | Catalog | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-743 | MHF-D19 | 0 |
Keuffel & Esser Manual | Elementary Instructions | 1944 | 49124 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-727 | MHF-D19 | 0 |
Keuffel & Esser Manual | Educational Supplies & Equipment | 1966 | 15189-115K-45 | USA | Catalog | 0.0 | Paper | 0 | 0 | 1 | 0 | MHF-679 | MHF-D19 | 0 |
Keuffel & Esser Manual | Decimal Equivalents of Fractions / Calendar | 1948 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-748 | MHF-D19 | 0 |
Keuffel & Esser Manual | Deci-Lon An Instruction Manual | 1962 | 52387 | USA | Manual | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-687 | Bookcase | 0 |
Keuffel & Esser Manual | Deci-Lon An Instruction Manual | 1962 | 91008 | USA | Manual | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-686 | Bookcase | 0 |
Keuffel & Esser Manual | Cooke Radio Slide Rule A Suppl. Man. | 1942 | 11,65502. K&E 4139, SN 313895 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-742 | MHF-D19 | 0 |
Keuffel & Esser Manual | A slide rule with intellect and .. horse sense | 1956 | 91264 | USA | Catalog | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-744 | MHF-D19 | 0 |
Keuffel & Esser Manual | A Self Instruction Manual | 1955 | 50007 | USA | Manual | 0.0 | Hard Cover | 0 | 0 | 0 | 0 | MHF-684 | Bookcase | 0 |
Kolesch & Co. | Midget | 1924 | | USA | Linear | 12.5 | Wood | 0 | 0 | 0 | 0 | MHF-375 | MHF-D20 | 0 |
Kontrolpribor | KL-1 JUBILEUM 1967 | 1967 | | USSR | Circular | 3.5 | Metal | 0 | 0 | 0 | 1 | MHF-269 | Cabinet | 0 |
Kontrolpribor | KL-1 | 1966 | | USSR | Circular | 3.5 | Metal | 0 | 0 | 1 | 0 | MHF-270 | Cabinet | 0 |
Lafayette | F-428 Log Log Duplex Deci-Trig | 1961 | K.S-3 | Japan | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-388 | MHF-D23 | 0 |
Lafayette | 99-71029 VectorLog | 1961 | SS-2 | Japan | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-389 | MHF-D23 | 0 |
Lawrence Engineering | US Aviation Underwriters, Inc. | 1944 | | USA | Linear | 29.3 | Wood | 0 | 0 | 0 | 0 | David Rance | David Rance | 0 |
Lawrence Engineering | Madison Speed Calculator | 1947 | | USA | Special | 17.8 | Wood | 0 | 0 | 0 | 0 | MHF-342 | MHF-D22 | 0 |
Lawrence Engineering | Epperson TV Coverage Calculator | 1952 | | USA | Special | 24.0 | Wood | 0 | 0 | 0 | 0 | MHF-343 | MHF-D22 | 0 |
Lawrence Engineering | DeYOE Slide Rule | 0 | | USA | Special | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-344 | MHF-D22 | 0 |
Lawrence Engineering | B.F. Grizzle Water Line Capacity | 1944 | | USA | Special | 19.5 | Wood | 0 | 1 | 0 | 0 | MHF-339 | MHF-D22 | 0 |
Lawrence Engineering | B. F. Grizzle Instructions for Water Line Capacity Slide Rule | 1944 | | USA | Manual | 19.5 | Paper | 0 | 0 | 0 | 0 | MHF-754 | MHF-D22 | 0 |
Lawrence Engineering | 8-L Copper Wire Selector | 1946 | | USA | Special | 16.5 | Wood | 0 | 1 | 0 | 0 | MHF-338 | MHF-D22 | 0 |
Lawrence Engineering | 8-B | 0 | | USA | Linear | 19.0 | Wood | 0 | 0 | 0 | 1 | MHF-331 | MHF-D22 | 0 |
Lawrence Engineering | 8-B | 1937 | | USA | Linear | 19.0 | Wood | 0 | 0 | 1 | 0 | MHF-332 | MHF-D22 | 0 |
Lawrence Engineering | 409 U. S. Navy | 0 | | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-340 | MHF-D22 | 0 |
Lawrence Engineering | 10-D Lawrence Lumber Calculator | 0 | | USA | Special | 24.7 | Wood | 0 | 0 | 1 | 0 | MHF-336 | MHF-D22 | 0 |
Lawrence Engineering | 10-D Eureka Millwork Lumber Calculator | 0 | | USA | Special | 24.7 | Wood | 0 | 0 | 1 | 0 | MHF-337 | MHF-D22 | 0 |
Lawrence Engineering | 10-B | 0 | | USA | Linear | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-333 | MHF-D22 | 0 |
Lawrence Engineering | 10-B | 1940 | | USA | Linear | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-578 | Display | 0 |
Lawrence Engineering Service | Lawrence “Secret Code” Rule | 1939 | | USA | Special | 18.0 | Wood | 0 | 0 | 0 | 0 | MHF-485 | MHF-D22 | 0 |
Lightning Adding Machine | | 0 | | USA | Addometer | 20.0 | Metal | 0 | 0 | 1 | 0 | MHF-479 | MHF-D25 | 0 |
Lutz | 252 U.S. | 1964 | ss-9 | Japan | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-393 | MHF-D23 | 0 |
M. H. Mear | Gas Flow Calculator Model 3 | 0 | | UK | Special | 19.5 | Plastic | 0 | 1 | 0 | 0 | MHF-526 | MHF-D18 | 0 |
Maurice Damien | Universal Ruler (Regle A Calculus) | 1930 | | France | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-625 | MHF-D23 | 0 |
Merchant Account | Simplex | 0 | 11978 | USA | Adding Machine | 0.0 | Metal | 0 | 1 | 0 | 0 | MHF-773 | Workshop | 0 |
Monroe | Calculator Model K | 1925 | | USA | Adding Machine | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-770 | Workshop | 0 |
Monroe Manufacturing Co. | Monroe Slide Rule Pencil | 0 | | USA | Jewelry | 7.4 | Metal | 0 | 0 | 1 | 0 | MHF-647 | MHF-Box1 | 0 |
Moonstick Co. | Moonstick | 2001 | | USA | Special | 0.0 | Plastic | 0 | 0 | 1 | 0 | MHF-461 | MHF-D25 | 0 |
Novotni | Paper Box Board Rule | 0 | | USA | Special | 16.0 | Wood | 0 | 0 | 0 | 0 | MHF-424 | MHF-D24 | 0 |
Novotni | Novotni Weight Rule | 0 | | USA | Special | 33.5 | Plastic | 0 | 0 | 0 | 0 | MHF-421 | MHF-D24 | 0 |
Novotni | Feed Slide Rule | 1955 | | USA | Special | 25.5 | Wood | 0 | 0 | 1 | 0 | MHF-446 | MHF-D24 | 0 |
Novotni | Novotni Weight Slide Rule | 1920 | | USA | Special | 33.5 | Plastic | 0 | 0 | 0 | 0 | MHF-422 | MHF-D24 | 0 |
Ohio State University | Slide Rule Manual | 1947 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-749 | MHF-D19 | 0 |
Otis-King | L 430/429 | 1923 | A8302 | UK | Cylindrical | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-529 | Cabinet | 0 |
Otis-King | L 430/429 | 1957 | S6877 | UK | Cylindrical | 26.0 | Metal | 0 | 1 | 1 | 0 | MHF-531 | Cabinet | 0 |
Otis-King | L 430/429 | 1969 | T1415 | UK | Cylindrical | 26.0 | Metal | 0 | 0 | 1 | 0 | MHF-537 | MHF-D9 | 0 |
Otis-King | L 430/429 | 1974 | B1230 | UK | Cylindrical | 26.0 | Metal | 0 | 0 | 1 | 0 | MHF-530 | MHF-D9 | 0 |
Otis-King | K 423/414 | 1970 | X4113 | UK | Cylindrical | 26.0 | Metal | 0 | 0 | 1 | 0 | MHF-528 | MHF-D9 | 0 |
P.I.C. / A. G. Thornton Ltd. | 172 /PC17 | 0 | | UK | Linear | 25.0 | Wood | 0 | 0 | 1 | 1 | MHF-616 | MHF-D23 | 0 |
P.I.C. / A. G. Thornton Ltd. | 131 Electro | 0 | | UK | Linear | 25.0 | Wood | 0 | 1 | 0 | 1 | MHF-398 | MHF-D23 | 0 |
Perrygraf Corp. | Varian NMR Correlator | 1973 | | USA | Special | 21.0 | Paper | 0 | 0 | 0 | 0 | MHF-633 | MHF-D24 | 0 |
Perrygraf Corp. | Hewlett-Packard Packard Vector Impedance Calculator | 1966 | 7 each | USA | Special | 21.0 | Paper | 0 | 0 | 0 | 0 | MHF-429 | MHF-D24 | 0 |
Perrygraf Corp. | Doty Scientific Vector Impedance Calculator | 1971 | | USA | Special | 21.0 | Paper | 0 | 0 | 0 | 0 | MHF-632 | MHF-D24 | 0 |
Pery Graf Corp. | Roebling "Traction Steel" Elevator Rope Calculator | 1944 | | USA | Special | 24.0 | Paper | 0 | 1 | 0 | 0 | MHF-448 | MHF-D24 | 0 |
Pickett | Trig, Training(120) | 1962 | | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-298 | MHF-D21 | 0 |
Pickett | N904-ES Trig & Decimal Keeper Speed Rule | 1962 | 66/123 75888 | USA | Linear | 25.0 | Metal | 1 | 1 | 1 | 0 | MHF-320 | MHF-D21 | 0 |
Pickett | N902-ES Simplex Trig | 1959 | 39/41 Slide | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-311 | MHF-D21 | 0 |
Pickett | N902-ES Simplex Trig | 1960 | 66/41 Slide | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-310 | MHF-D21 | 0 |
Pickett | N901-ES Simplex | 1960 | 65 | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-306 | MHF-D21 | 0 |
Pickett | N600-ES Log Log Speed Rule | 1975 | | USA | Linear | 12.5 | Metal | 1 | 1 | 1 | 0 | MHF-296 | MHF-D21 | 0 |
Pickett | N515-T Electronic | 1962 | 349 | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-305 | MHF-D21 | 0 |
Pickett | N515-T Electronic | 1966 | | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-304 | MHF-D21 | 0 |
Pickett | N500-ES HI Log/Log | 1962 | PT 2 Rule pack | USA | Linear | 25.0 | Metal | 1 | 1 | 1 | 0 | MHF-322 | MHF-D21 | 0 |
Pickett | N500-ES HI Log/Log | 1964 | C1962 | USA | Linear | 25.0 | Wood | 1 | 1 | 0 | 0 | MHF-303 | MHF-D21 | 0 |
Pickett | N4P-ES Vector-Type Log Log | 1966 | | USA | Linear | 12.5 | Wood | 1 | 1 | 1 | 0 | MHF-599 | MHF-D21 | 0 |
Pickett | N4-T Vector-Type LOG LOG | 1964 | | USA | Linear | 25.0 | Metal | 1 | 1 | 0 | 0 | MHF-600 | MHF-D21 | 0 |
Pickett | N4-ES Vector-Type LOG LOG | 1962 | 74 272 | USA | Linear | 25.0 | Metal | 1 | 1 | 0 | 0 | MHF-319 | MHF-D21 | 0 |
Pickett | N4-ES Vector-Type LOG LOG | 1964 | | USA | Linear | 25.0 | Metal | 1 | 1 | 0 | 0 | MHF-318 | MHF-D21 | 0 |
Pickett | N3P-ES Power Log Exponential | 1966 | | USA | Linear | 12.5 | Wood | 1 | 1 | 0 | 0 | MHF-294 | MHF-D21 | 0 |
Pickett | N300-ES Log Log | 1962 | PT 2 Rule Pack | USA | Linear | 12.5 | Metal | 1 | 1 | 1 | 0 | MHF-323 | MHF-D21 | 0 |
Pickett | N3-ES Power Log Exponential | 1975 | | USA | Linear | 25.0 | Metal | 1 | 0 | 0 | 1 | MHF-316 | MHF-D21 | 0 |
Pickett | N200-T Trig | 1961 | 38 | USA | Linear | 12.6 | Metal | 1 | 1 | 0 | 0 | MHF-289 | MHF-D21 | 0 |
Pickett | N200-ES Trig | 1975 | | USA | Linear | 12.5 | Metal | 1 | 1 | 0 | 0 | MHF-601 | MHF-D21 | 0 |
Pickett | N200-ES Trig | 1975 | | USA | Linear | 12.5 | Metal | 1 | 1 | 0 | 0 | MHF-290 | MHF-D21 | 0 |
Pickett | N1010-T Trig | 1966 | 945239 | USA | Linear | 25.0 | Metal | 1 | 1 | 1 | 0 | MHF-321 | MHF-D21 | 0 |
Pickett | N1010-ES Trig Demonstration | 1964 | | USA | Linear | 100.0 | Wood | 1 | 0 | 0 | 0 | MHF-606 | Shop Wall | 0 |
Pickett | N1010-ES Trig | 1960 | | USA | Linear | 25.0 | Metal | 1 | 1 | 0 | 0 | MHF-314 | MHF-D21 | 0 |
Pickett | N1010-ES Trig | 1975 | | USA | Linear | 25.0 | Metal | 1 | 0 | 0 | 0 | MHF-605 | MHF-D21 | 0 |
Pickett | 905-ES "A" Texas Speed Rule | 1962 | 119 | USA | Linear | 25.0 | Metal | 1 | 1 | 0 | 0 | MHF-312 | MHF-D21 | 0 |
Pickett | 905-ES "A" Texas Speed Rule | 1962 | 119 | USA | Linear | 25.0 | Metal | 1 | 1 | 1 | 0 | MHF-324 | MHF-D21 | 0 |
Pickett | 903-T Pickett-Trig Conversion | 1957 | 47 | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-604 | MHF-D21 | 0 |
Pickett | 902-T Simplex Trig | 1955 | 39/41 Slide | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-307 | MHF-D21 | 0 |
Pickett | 902-T Simplex Trig | 1958 | 39/41 | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-308 | MHF-D21 | 0 |
Pickett | 902-T Simplex Trig | 1966 | | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-309 | MHF-D21 | 0 |
Pickett | 901 Simplex | 1955 | 20 | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-603 | MHF-D21 | 0 |
Pickett | 800-T Log Log | 1969 | | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-602 | MHF-D21 | 0 |
Pickett | 700 U. S. Air Force Aerial Photo Slide Rule Type A-2 | 1954 | 59 | USA | Linear | 12.5 | Metal | 0 | 1 | 0 | 0 | MHF-293 | MHF-D21 | 0 |
Pickett | 61 Promotional Midlan-Ross Corporation | 1957 | | USA | Linear | 12.5 | Paper | 0 | 1 | 0 | 0 | MHF-285 | MHF-D21 | 0 |
Pickett | 4 Deci Log Log | 1950 | | USA | Linear | 25.0 | Metal | 0 | 1 | 0 | 0 | MHF-317 | MHF-D21 | 0 |
Pickett | 300 Log | 1952 | 42 Slide | USA | Linear | 12.5 | Metal | 1 | 0 | 0 | 0 | ISRM | ISRM | 0 |
Pickett | 300 Log | 1955 | 42 Z Slide | USA | Linear | 12.5 | Metal | 1 | 1 | 0 | 0 | MHF-292 | MHF-D21 | 0 |
Pickett | 200 Trig | 1953 | 38 National Carbon Company | USA | Linear | 12.5 | Metal | 1 | 0 | 0 | 0 | MHF-287 | MHF-D21 | 0 |
Pickett | 200 Trig | 1959 | 39 Slide | USA | Linear | 12.5 | Metal | 1 | 1 | 0 | 0 | MHF-288 | MHF-D21 | 0 |
Pickett | 20 Basic | 1955 | | USA | Linear | 12.5 | Metal | 0 | 1 | 1 | 0 | MHF-297 | MHF-D21 | 0 |
Pickett | 2 Deci Log Log | 1950 | 17133 | USA | Linear | 25.0 | Metal | 1 | 1 | 0 | 0 | MHF-315 | MHF-D21 | 0 |
Pickett | 160C-T Microline | 1975 | | Mexico | Linear | 12.5 | Plastic | 0 | 1 | 1 | 0 | MHF-295 | MHF-D21 | 0 |
Pickett | 160 Microline | 1975 | | USA | Linear | 12.5 | Plastic | 0 | 1 | 0 | 0 | MHF-286 | MHF-D21 | 0 |
Pickett | 140 Microline | 1975 | | Mexico | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-302 | MHF-D21 | 0 |
Pickett | 14 U.S. Military Slide Rule | 1962 | | USA | Linear | 25.0 | Metal | 1 | 1 | 0 | 0 | MHF-467 | MHF-D25 | 0 |
Pickett | 121 Microline | 1970 | | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-301 | MHF-D21 | 0 |
Pickett | 120 Simplex | 1962 | | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-299 | MHF-D21 | 0 |
Pickett | 120 Simplex | 1962 | | USA | Linear | 25.0 | Plastic | 0 | 0 | 1 | 0 | MHF-300 | MHF-D21 | 0 |
Pickett | 112C Metric Converter - Weight | 1975 | | USA | Circular | 15.2 | Plastic | 0 | 0 | 0 | 0 | MHF-328 | MHF-D22 | 0 |
Pickett | 112C Metric Converter - Liquid | 1975 | x2 | USA | Circular | 15.2 | Plastic | 0 | 0 | 0 | 0 | MHF-330 | MHF-D22 | 0 |
Pickett | 112C Metric Converter - Liquid | 1975 | x2 | USA | Circular | 15.2 | Plastic | 0 | 0 | 0 | 0 | MHF-329 | MHF-D22 | 0 |
Pickett | 108ES | 1975 | | Japan | Circular | 8.0 | Metal | 1 | 1 | 0 | 0 | MHF-327 | MHF-D22 | 0 |
Pickett | 103-ES Mark-Up Calculator | 1975 | NOS | USA | Circular | 10.2 | Metal | 0 | 1 | 0 | 0 | MHF-326 | MHF-D22 | 0 |
Pickett | 101C Dial Rule | 1975 | NOS | USA | Circular | 10.2 | Metal | 0 | 1 | 0 | 0 | MHF-325 | MHF-D22 | 0 |
Pickett | 1000 Ortho-Phase | 1950 | Milo Frey | USA | Linear | 25.0 | Metal | 1 | 0 | 0 | 0 | MHF-313 | MHF-D21 | 0 |
Pickett Manual | Model 2 | 0 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 1 | MHF-751 | MHF-D19 | 0 |
Pickett Manual | How to use Trig Slide Rules | 1960 | MT-2 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-765 | MHF-D22 | 0 |
Pickett Manual | How to use Trig Slide Rules | 1960 | M-12 R | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 1 | MHF-691 | MHF-D22 | 0 |
Pickett Manual | How to use Trig Slide Rules | 1960 | M-12 R | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-693 | MHF-D22 | 0 |
Pickett Manual | How to use the TRIG Pickett Slide Rule | 1952 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-692 | MHF-D22 | 0 |
Pickett Manual | How To Use the Model 1000 Slide Rule | 1948 | | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-689 | MHF-D22 | 0 |
Pickett Manual | How to use Log Log Slide Rules | 1960 | Pull-3 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-694 | MHF-D22 | 0 |
Pickett Manual | How to use Dual Base Slide Rule Exponential Ln-L Scales | 1959 | M-21 | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-690 | MHF-D22 | 0 |
Pickett Manual | Electronics and Your Slide Rule Pt I - IV | 1965 | 3132 to 3135 | USA | Manual | 0.0 | Plastic | 0 | 0 | 0 | 0 | MHF-695 | MHF-D22 | 0 |
Pratt & Whitney Aircraft - Perrygraf | Gas Turbine Computer | 1957 | | USA | Special | 12.7 | Plastic | 0 | 1 | 0 | 0 | MHF-524 | MHF-D18 | 0 |
Publications Department - Raritan Arsenal | TM 9-526 Technical Manual Graphical Firing Tables | 1943 | RAPD13DEC43-95M | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-699 | MHF-D25 | 0 |
Puregas Equipment Corp. | Gas Pressurization Computer PEC 531 | 0 | | USA | Special | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-437 | MHF-D24 | 0 |
Radiac & Nuclear Yield | ABC-M1A1 & ABC-M4A1 | 1990 | | USA | Special | 10.0 | Plastic | 0 | 1 | 0 | 0 | MHF-512 | MHF-D17 | 0 |
Rand Drill Company | Cox's Compressed-Air Discharge / Pump Computer | 1897 | | USA | Special | 11.0 | Paper | 0 | 0 | 0 | 1 | MHF-491 | MHF-D16 | 1 |
Random Research, Inc. | Harvard Logarithmic Selector | 1973 | | USA | Special | 12.7 | Plastic | 0 | 0 | 0 | 0 | MHF-514 | MHF-D16 | 0 |
Ray E. Dennis | Graphics En. Dr. 3260 Rle No. 4, t=U^1.3M | 1948 | Handmade | USA | Special | 31.0 | Wood | 0 | 0 | 0 | 0 | MHF-460 | MHF-D25 | 0 |
RCA | Satellite Location Chart | 0 | | USA | Special | 22.0 | Plastic | 1 | 0 | 0 | 1 | MHF-462 | MHF-D25 | 0 |
Regal Precision | The Regal Presision Calaulator Profit | 0 | | USA | Special | 15.0 | Metal | 0 | 0 | 0 | 0 | MHF-458 | MHF-D24 | 0 |
Relay | DCB-517 | 1954 | CS-3 | Japan | Linear | 12.5 | Wood | 1 | 1 | 0 | 0 | MHF-612 | MHF-D23 | 0 |
Reliable Typewriter & Adding Machine Co. | Addometer B | 0 | | USA | Addometer | 29.0 | Metal | 0 | 1 | 0 | 0 | MHF-478 | MHF-D25 | 0 |
Reliable Typewriter & Adding Machine Co. | Addometer | 0 | | USA | Addometer | 29.0 | Metal | 0 | 0 | 1 | 0 | MHF-477 | MHF-D25 | 0 |
Reo Motor Car Company | Truck Performance Slide Rule | 1933 | | USA | Special | 20.2 | Plastic | 0 | 1 | 0 | 0 | MHF-449 | MHF-D24 | 0 |
Roncari Industries | Concrete Volume Calculator | 0 | | USA | No Value | 12.5 | Plastic | 0 | 0 | 0 | 0 | MHF-453 | MHF-D24 | 0 |
Royal Dutch Engineering Works | Pipe & pump | 0 | | Holland | Special | 12.0 | Plastic | 0 | 1 | 0 | 0 | MHF-519 | MHF-D16 | 0 |
S.R. & S.E. Co. Inc | Bituminous-Mix Slide Rule | 1944 | | USA | Special | 30.4 | Wood | 0 | 0 | 0 | 0 | MHF-439 | MHF-D24 | 0 |
Sama & Etani | 600-OP Projection | 1969 | | Japan | Circular | 13.0 | Plastic | 0 | 1 | 0 | 0 | MHF-500 | MHF-D16 | 0 |
Sama & Etani | 600 Michael O'Leary Memorial Edition | 2003 | | Japan | Circular | 6.0 | Plastic | 0 | 1 | 0 | 0 | MHF-499 | MHF-D16 | 0 |
Sama & Etani | 600 Hewitt-Robins | 1969 | | Japan | Circular | 6.0 | Plastic | 0 | 1 | 0 | 0 | MHF-498 | MHF-D16 | 0 |
Sans & Streiffe | 311 | 0 | J.S-2 | Japan | Linear | 25.0 | Wood | 0 | 1 | 0 | 0 | MHF-394 | MHF-D23 | 0 |
Schall & Son | Slide Rule for calculating X Ray Exposures | 1912 | | UK | Special | 25.7 | Wood | 0 | 0 | 0 | 0 | MHF-442 | MHF-D24 | 0 |
Schick Incorporated | Stadimeter | 1943 | 3501-1943 | USA | Other | 0.0 | Metal | 0 | 1 | 0 | 0 | MHF-776 | Bookcase-2 | 0 |
Schuykill Paper Co. | Paper Slide Rule | 0 | | USA | Special | 35.5 | Wood | 0 | 0 | 0 | 0 | MHF-426 | MHF-D24 | 0 |
Scientific Instruments Co. | 1610-D | 1963 | | Japan | Circular | 11.7 | Metal | 1 | 1 | 0 | 0 | MHF-507 | MHF-D16 | 0 |
Sears, Roebuck and Co. | Merchant's Calculator | 1946 | | USA | Linear | 28.6 | Wood | 0 | 0 | 0 | 0 | MHF-377 | MHF-D20 | 0 |
Slide Chart Corp. | Fan & Blower RPM Change Converter | 1976 | | USA | Circular | 15.5 | Paper | 0 | 0 | 0 | 0 | MHF-525 | MHF-D18 | 0 |
Slide Rule & Scale Eng. Co. | Brick & Tile Computing | 0 | | USA | Linear | 29.8 | Wood | 0 | 1 | 0 | 0 | MHF-455 | MHF-D24 | 0 |
Sports Car Press | A Guide to Rallying | 1957 | Larry Reid | USA | Manual | 0.0 | Paper | 0 | 0 | 0 | 0 | MHF-510 | MHF-D17 | 0 |
Sterling | 685Precision | 0 | | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 1 | MHF-372 | MHF-D20 | 0 |
Sterling | 685 Precision | 0 | | USA | Linear | 25.0 | Plastic | 0 | 1 | 0 | 0 | MHF-370 | MHF-D20 | 0 |
Sterling | 685 Precision | 1971 | MHF | USA | Linear | 25.0 | Plastic | 0 | 0 | 0 | 0 | MHF-371 | MHF-D20 | 0 |
Sterling | 684 Precision | 0 | | USA | Linear | 25.0 | Plastic | 0 | 0 | 0 | 0 | MHF-369 | MHF-D20 | 0 |
Sterling | 594 Decimal Trig Log-Log | 1965 | PS | USA | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-374 | MHF-D20 | 0 |
Sterling | 594 | 1965 | | USA | Linear | 25.0 | Plastic | 1 | 1 | 1 | 0 | MHF-581 | Display | 0 |
Sterling | 594 | 1972 | | USA | Linear | 25.0 | Plastic | 1 | 1 | 0 | 0 | MHF-373 | MHF-D20 | 0 |
Sterling | 587 | 0 | | USA | Linear | 12.5 | Plastic | 0 | 0 | 0 | 0 | MHF-576 | Display | 0 |
Sterling | 565 Automatic Adding Machine | 0 | | USA | Addometer | 20.0 | Plastic | 0 | 0 | 0 | 0 | MHF-473 | MHF-D25 | 0 |
Stevens Engineering Company | Rally Indicator Model 25 | 1959 | | USA | Special | 23.0 | Plastic | 0 | 1 | 0 | 0 | MHF-508 | MHF-D17 | 0 |
Stevens Engineering Company | Rally Indicator | 1959 | | USA | Special | 15.0 | Plastic | 0 | 1 | 0 | 0 | MHF-509 | MHF-D17 | 0 |
Swank | Tie Clip | 0 | | USA | Jewelry | 3.6 | Plastic | 0 | 0 | 0 | 0 | MHF-651 | MHF-Box1 | 0 |
Swank | Tie Clip | 0 | | USA | Jewelry | 4.1 | Plastic | 0 | 0 | 0 | 1 | MHF-652 | MHF-Box1 | 0 |
Swank | Tie Clip | 0 | | USA | Jewelry | 4.1 | Metal | 0 | 0 | 0 | 0 | MHF-650 | MHF-Box1 | 0 |
Swank | Tie Clip | 0 | | USA | Jewelry | 4.1 | Metal | 0 | 0 | 1 | 0 | MHF-649 | MHF-Box1 | 0 |
Swank | Money Clip | 0 | | USA | Jewelry | 3.6 | Plastic | 0 | 0 | 0 | 0 | MHF-648 | MHF-Box1 | 0 |
Sylvania | Flash Film Pencil | 0 | | USA | Jewelry | 14.0 | Plastic | 0 | 0 | 0 | 0 | MHF-653 | MHF-Box1 | 0 |
Tavernier - Gravet | 11-22 Péraux rule | 1939 | 34 / 32 End | France | Linear | 25.0 | Wood | 0 | 1 | 0 | 1 | Sold | Sold | 0 |
Teknorit | Teknor NR 9 Energy, HP | 0 | | Sweden | Circular | 12.0 | Metal | 0 | 0 | 0 | 0 | MHF-513 | MHF-D16 | 0 |
Teknorit | Teknor NR 8 Temperature | 0 | | Sweden | Circular | 12.0 | Metal | 0 | 0 | 0 | 0 | MHF-513 | MHF-D16 | 0 |
Teknorit | Teknor NR 7 Pressure | 0 | | Sweden | Circular | 12.0 | Metal | 0 | 0 | 0 | 0 | MHF-513 | MHF-D16 | 0 |
Teknorit | Teknor NR 6 Surface | 0 | | Sweden | Circular | 12.0 | Metal | 0 | 0 | 0 | 0 | MHF-513 | MHF-D16 | 0 |
Teknorit | Teknor NR 4 Length mm | 0 | | Sweden | Circular | 12.0 | Metal | 0 | 0 | 0 | 0 | MHF-513 | MHF-D16 | 0 |
Teknorit | Teknor NR 3 Weight | 0 | | Sweden | Circular | 12.0 | Metal | 0 | 0 | 0 | 0 | MHF-513 | MHF-D16 | 0 |
Teknorit | Teknor NR 1 Volume | 0 | x2 | Sweden | Circular | 12.0 | Metal | 0 | 0 | 0 | 0 | MHF-513 | MHF-D16 | 0 |
The Art Engraving and Colortype CO | 1258 size reduction | 0 | | USA | Special | 26.0 | Wood | 0 | 0 | 0 | 0 | MHF-428 | MHF-D24 | 0 |
The B. F. Cummings Co. | Check Perforator | 1922 | | USA | Other | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-779 | Workshop | 0 |
The Cretex Companies, Inc. | Sewer Design Slide Rule (Based on Kutter's Formula) | 1947 | | USA | Special | 27.5 | Paper | 0 | 1 | 0 | 0 | MHF-628 | MHF-D24 | 0 |
Thinkgeek | 1337 Nanoline | 2009 | | China | Linear | 25.0 | Plastic | 1 | 1 | 1 | 0 | MHF-378 | MHF-D20 | 0 |
Thomas S. Airev | Automotive Computing Slide Rule | 0 | | USA | Special | 12.7 | Plastic | 0 | 0 | 0 | 0 | MHF-450 | MHF-D24 | 0 |
Thornton | Nautical 0552/1148 | 0 | | UK | Linear | 27.0 | Plastic | 1 | 1 | 0 | 0 | MHF-463 | MHF-D25 | 0 |
U. S. Army | Downwind Distance Slide Rule Chemical Weapons CTA 3-7-7 | 0 | GTA 3-7-3 | USA | Special | 12.6 | Paper | 0 | 0 | 0 | 0 | MHF-511 | MHF-D17 | 0 |
U. S. Army | Direction plotting | 0 | with Downwind Distance Slide Rule | USA | Special | 20.5 | Plastic | 0 | 0 | 0 | 0 | MHF-523 | MHF-D18 | 0 |
Unique | Log Log Slide Rule | 0 | | UK | Linear | 25.3 | Wood | 0 | 0 | 1 | 0 | MHF-397 | MHF-D23 | 0 |
Unique | 1140 Log Log | 0 | | UK | Linear | 12.7 | Wood | 0 | 0 | 1 | 0 | MHF-396 | MHF-D23 | 0 |
Unknown | Unknown | 0 | | UK | Linear | 10.0 | Wood | 0 | 1 | 0 | 0 | MHF-615 | MHF-D23 | 0 |
Unknown | Tie CLip | 0 | | USA | Jewelry | 5.0 | Plastic | 0 | 0 | 1 | 0 | MHF-766 | MHF-Box1 | 0 |
Unknown | Tie Clip | 0 | | USA | Jewelry | 5.0 | Plastic | 0 | 0 | 0 | 0 | MHF-655 | MHF-Box1 | 0 |
Unknown | Tie Clip | 0 | | USA | Jewelry | 6.5 | Plastic | 0 | 0 | 0 | 0 | MHF-657 | MHF-Box1 | 0 |
Unknown | Tape Drive | 0 | | USA | Jewelry | 3.6 | Metal | 0 | 0 | 0 | 0 | MHF-664 | MHF-Box1 | 0 |
Unknown | Sector | 0 | | UK | Special | 15.0 | No Value | 0 | 0 | 0 | 0 | MHF-559 | Cabinet | 0 |
Unknown | Investor's Stock Computer | 0 | | USA | Special | 22.5 | Plastic | 0 | 0 | 0 | 0 | MHF-457 | MHF-D24 | 0 |
Unknown | Cufflinks Sterling | 0 | | USA | Jewelry | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-654 | MHF-Box1 | 0 |
Unknown | 4" in/A-BC-D/cm SLT | 0 | | Japan | Linear | 10.0 | Wood | 0 | 1 | 0 | 0 | MHF-380 | MHF-D23 | 0 |
Unknown | Kitchen Slide Rule | 0 | | USA | Special | 25.0 | Wood | 0 | 0 | 0 | 0 | MHF-627 | MHF-D25 | 0 |
Unknown - Superior Piping | Tie Clip | 0 | | USA | Jewelry | 3.6 | Plastic | 0 | 0 | 1 | 0 | MHF-656 | MHF-Box1 | 0 |
Upjohn | USX 9557.00 Pregnancy Calculator | 1993 | | USA | Special | 11.5 | Plastic | 0 | 0 | 0 | 0 | MHF-516 | MHF-D16 | 0 |
Upjohn | USX 2833.00 Injection Calculator | 1995 | | USA | Special | 10.0 | Plastic | 0 | 0 | 0 | 0 | MHF-517 | MHF-D16 | 0 |
US Army | M24 Howitzer 75mm | 1945 | 7674033 | USA | Linear | 28.0 | Wood | 0 | 0 | 0 | 0 | MHF-470 | MHF-D25 | 0 |
Utilities Distributors, Inc. | UDI Gas Slide Rule | 1946 | EAC 7-20-46 | USA | Special | 25.5 | Wood | 1 | 1 | 0 | 0 | MHF-438 | MHF-D24 | 0 |
Vernon | Tie Clip Sterling | 0 | | USA | Jewelry | 4.0 | Metal | 0 | 0 | 0 | 0 | MHF-661 | MHF-Box1 | 0 |
Vernon | Tie Clip & Cufflinks | 0 | | USA | Jewelry | 4.0 | Metal | 0 | 0 | 0 | 0 | MHF-659 & A | MHF-Box1 | 0 |
Vernon | Tie Clip & Cufflinks | 0 | | USA | Jewelry | 4.0 | Metal | 0 | 0 | 0 | 0 | MHF-660 & A | MHF-Box1 | 0 |
Vernon | Cufflinks | 0 | | USA | Jewelry | 0.0 | Metal | 0 | 0 | 0 | 0 | MHF-658 | MHF-Box1 | 0 |
W & G | 432 Comprehensive | 0 | | Australia | Linear | 25.0 | Wood | 0 | 0 | 1 | 0 | MHF-617 | MHF-D23 | 0 |
W C Cox Devonport | Timber | 0 | | USA | Linear | 58.0 | Wood | 0 | 0 | 0 | 0 | MHF-619 | MHF-D25 | 0 |
W. & L. E. Gurley | Cox Stadia Computer Cat. No. 3100 | 0 | | USA | Special | 12.0 | Plastic | 0 | 0 | 0 | 0 | MHF-492 | MHF-D16 | 0 |
W. & L. E. Gurley | Cox Stadia Computer | 1889 | | USA | Special | 12.0 | Paper | 0 | 0 | 0 | 0 | MHF-493 | MHF-D16 | 0 |
W.H.H. | Vickers Rule Slide M.G. (AUST.) MK.I. | 0 | | Australia | Special | 15.0 | Metal | 0 | 0 | 0 | 0 | MHF-781 | MHF-D25 | 0 |
Walter H. McKenna & Co. Inc. | Tie Clip | 0 | | USA | Jewelry | 3.0 | Metal | 0 | 0 | 1 | 0 | MHF-662 | MHF-Box1 | 0 |
Walter H. McKenna & Co. Inc. | Tie Clip | 0 | | USA | Jewelry | 3.0 | Metal | 0 | 0 | 0 | 0 | MHF-663 | MHF-Box1 | 0 |
Warren - Knight Co. | 1373B Wakco Weight Rule | 0 | | USA | Special | 33.5 | Plastic | 0 | 1 | 0 | 0 | MHF-420 | MHF-D24 | 0 |