Inventory of Collection as of 2021-11-07

Manufacturer	Model	Year	Serial Number	Origin	Type	Length	Material	Duplex	Case	Box	Problem	Accession No.	Location	Scanned
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 Beginners	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 Thachers 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	Youngs 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	Merchants 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	Merchants 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