| Keuffel and Esser |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in May-2008 |
| K & E Thacher Calculator slide rule Keuffel & | $694.00 | 18-May-2008 | 9 |
| K & E Thacher Calculator slide rule reproducti | $611.01 | 04-May-2008 | 13 |
| Rare K&E ANALON 68-1400 Slide Rule with Case & | $599.00 | 21-May-2008 | 1 |
| Vintage Keuffel & Esser slide rule model 68140 | $581.01 | 05-May-2008 | 13 |
| K&E KEUFFEL & ESSER RADIO SLIDE RULE & CASE #4 | $492.87 | 15-May-2008 | 13 |
| K&E Keuffel & Esser #68-1400 Analon SLIDE RULE | $449.44 | 31-May-2008 | 11 |
| ANALON K+E Slide Rule w/ leather holder - Exce | $449.44 | 31-May-2008 | 13 |
| Keuffel & Esser K&E Engineer's Slide Rule Oct | $348.00 | 03-May-2008 | 15 |
| K & E Thacher Calculator slide rule reproducti | $341.00 | 25-May-2008 | 5 |
| Vintage Keuffel & Esser 68 1130 Deci-Lon Slide | $264.99 | 17-May-2008 | 12 |
| Vintage 1963 K&E 68-1100 Slide Rule Deci-lon w | $260.68 | 04-May-2008 | 17 |
| "K&E Slide Rule, N4081-5-Log Log Duplex Decitr | $232.50 | 25-May-2008 | 7 |
| K&E slide rule 4083-3S log log duplex vector 1 | $217.50 | 30-May-2008 | 14 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $202.50 | 16-May-2008 | 4 |
| Vintage K&E Slide Rule 4181-3 w/case & Manual | $200.00 | 08-May-2008 | 13 |
| "Antique Keuffel Esser 20"" Merchant Slide Rul | $189.50 | 13-May-2008 | 10 |
| K&E KEUFFEL & ESSER COOKE RADIO SLIDE RULE 681 | $172.50 | 14-May-2008 | 12 |
| "Early Keuffel & Esser Slide Rule with Box, No | $167.49 | 06-May-2008 | 13 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $162.50 | 02-May-2008 | 4 |
| c1942 KEUFFEL & ESSER Power Trig SLIDE RULE No | $153.51 | 12-May-2008 | 7 |
| keuffel&esser slide rule 4071-3 with orig.gree | $152.50 | 10-May-2008 | 7 |
| Keuffel and Esser Decilon Slide Rule Original | $134.50 | 10-May-2008 | 13 |
| Early Keuffler & Esser Co. Slide Ruler /Unsual | $121.77 | 17-May-2008 | 17 |
| K&E KEUFFEL & ESSER COOKE RADIO SLIDE RULE 413 | $112.60 | 03-May-2008 | 12 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $112.50 | 18-May-2008 | 1 |
| K+E DECILON 68 1130 POCKET SLIDE RULE | $103.50 | 28-May-2008 | 8 |
| K&E Keuffler & Essler Deci-Lon Duplex Slide Ru | $102.50 | 07-May-2008 | 8 |
| K & E Deci-Lon 10 Slide Rule 1947 1961 | $102.50 | 13-May-2008 | 14 |
| Big Slide Rule Slidedisk Emil Tröger Circular | $100.00 | 29-May-2008 | 1 |
| "KEUFFEL&ESSER CO.NY.SLIDE RULE # N 4096,#68-2 | $92.00 | 21-May-2008 | 2 |
| K&E KEUFFEL & ESSER CO. DECI-LON 10 SLIDE RULE | $91.00 | 04-May-2008 | 13 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $90.00 | 09-May-2008 | 1 |
| "Vintage K & E Keuffel & Esser N 4081-5 22"" S | $89.88 | 12-May-2008 | 8 |
| 1947 Keuffel & Esser K + E SLIDE RULE No. 4181 | $86.00 | 09-May-2008 | 21 |
| K & E SLIDE RULE WITH LEATHER CASE | $81.00 | 10-May-2008 | 10 |
| K&E KEUFFEL & ESSER Deci-Lon SLIDE RULE 68 110 | $79.99 | 13-May-2008 | 1 |
| Large K & E Slide Rule with Case | $77.98 | 02-May-2008 | 11 |
| ANTIQUE 1900s LARGE KEUFFEL ESSER SLIDE RULE M | $76.00 | 18-May-2008 | 5 |
| KEUFFEL & ESSER CO. SLIDE RULE | $73.50 | 03-May-2008 | 3 |
| KUEFFEL ESSER~K-E~SLIDE RULE~W/LEATHER CASE~41 | $68.59 | 10-May-2008 | 14 |
| Keuffel & Esser Deci-Lon slide Rule 68 1100 + | $65.00 | 03-May-2008 | 1 |
| KEUFFEL & ESSER Co POLLY PHASE SLIDE RULE US P | $62.11 | 29-May-2008 | 6 |
| "VINTAGE SLIDE RULES KEUFFEL, COOKE RADIO & MA | $61.75 | 17-May-2008 | 4 |
| K&E Decilon Slide Rule | $61.20 | 19-May-2008 | 7 |
| K & E DECI-LON 10 SLIDE RULE 68 1100 ~A BEAUTY | $61.06 | 18-May-2008 | 11 |
| Vintage KEUFFEL & ESSER K&E Ever-There 4097D S | $61.00 | 12-May-2008 | 9 |
| "MINTY KEUFFEL & ESSER DECI-LON SLIDE RULE 12- | $61.00 | 02-May-2008 | 10 |
| K+E Decilon 10 68-1100 slide rule w/case | $61.00 | 16-May-2008 | 2 |
| Vintage K&E Keuffel & Esser COOKE RADIO SLIDE | $60.00 | 07-May-2008 | 7 |
| Keuffel & Esser No. N4053-5 Polyphase Slide Ru | $60.00 | 12-May-2008 | 8 |
| K&E Keuffel Esser DECI-LON SLIDE RULE 68 1100 | $59.76 | 29-May-2008 | 14 |
| 4 OLD SLIDE RULES KEUFFEL ESSER MASCOT LAWRENC | $57.08 | 01-May-2008 | 13 |
| "Vintage K&E Cooke Radio Slide Rule #4139 w/ca | $56.55 | 04-May-2008 | 7 |
| Keuffel & Esser Zippo Money-Clip Knife Slide R | $56.55 | 04-May-2008 | 6 |
| Antique Vintage Keuffel Esser Slide Rule Magni | $56.00 | 22-May-2008 | 10 |
| K+E Log Log Duplex Decitrig Slide Rule 68 1210 | $56.00 | 14-May-2008 | 9 |
| KEUFFEL & ESSER K&E DECI-LON 68 1100 SLIDE RUL | $55.00 | 04-May-2008 | 12 |
| Keuffel & Esser Slide Rule Model 4080-3 w/leat | $54.53 | 02-May-2008 | 5 |
| Keuffel & Esser (K+E) Engineering Slide Rule | $53.00 | 26-May-2008 | 6 |
| Keuffel & Esser N-4100 Slide Rule with Leather | $52.79 | 25-May-2008 | 9 |
| K E Keuffel Esser Slide Rule Sliderule DECI LO | $52.77 | 06-May-2008 | 7 |
| 1954 Keuffel & Esser K&E Drafting & Slide Rule | $51.00 | 28-May-2008 | 3 |
| Keuffel & Esser Deci-Lon Slide Rule Leather Ca | $51.00 | 11-May-2008 | 17 |
| Vintage Keuffel & Esser Slide Rule # 4081-3 Ca | $51.00 | 12-May-2008 | 3 |
| Vintage Keuffel & Esser Slide Rule .... 4181-3 | $50.50 | 07-May-2008 | 14 |
| K+E JetLog Jr #4181-1 slide rule w/sheath + ex | $49.99 | 16-May-2008 | 1 |
| Vintage K E 4081-3 Log Log Duplex Decitrig Sli | $49.99 | 17-May-2008 | 1 |
| Keuffel & Esser School Catalog Drafting Slide | $48.00 | 24-May-2008 | 7 |
| "Keuffel & Esser K&E Very Early 16"" Mannheim | $46.67 | 05-May-2008 | 6 |
| VINTAGE K&E SLIDE RULE DECI-LON 10 WITH LEATHE | $46.39 | 08-May-2008 | 10 |
| K&E Keuffler & Essler Deci-Lon Duplex Slide Ru | $46.00 | 01-May-2008 | 15 |
| K&E SLIDE RULE | $46.00 | 28-May-2008 | 6 |
| Vintage K & E Keuffel & Esser Slide Rule | $45.00 | 25-May-2008 | 6 |
| "Vintage K&E,Keuffel Esser Log Log Slide Rule, | $43.00 | 30-May-2008 | 21 |
| Vintage 1947 Keuffel & Esser K&E Pocket Slide | $43.00 | 08-May-2008 | 10 |
| Keuffler & Essler 68-1100 Deci-lon Slide Rule | $42.35 | 04-May-2008 | 6 |
| K + E SLIDE RULE DECI-LON 68 1100 LEATHER HOLD | $42.11 | 25-May-2008 | 4 |
| FRENCH Brass&Steel DRAFTING TOOL SET& K & E Sl | $41.04 | 29-May-2008 | 9 |
| K&E KEUFFEL ESSER SLIDE RULE 4053-2 1900 ANTIQ | $41.00 | 18-May-2008 | 8 |
| Vintage KEUFFEL & ESSER SLIDE RULE with LEATHE | $41.00 | 07-May-2008 | 3 |
| "K & E Sliderule, 12 scale WITH 4 engineering | $41.00 | 31-May-2008 | 5 |
| 1908 K & E SLIDE RULE & CASE Excellent Conditi | $39.62 | 05-May-2008 | 4 |
| K & E Slide Rule | $39.00 | 07-May-2008 | 14 |
| Patent 1915 KEUFFEL & ESSER SLIDERULE Slide Ru | $39.00 | 19-May-2008 | 6 |
| Vintage Slide Rule w/Case Keuffel & Esser 1961 | $38.94 | 07-May-2008 | 5 |
| "Keuffel & Esser K&E 4081-3 Decitrig slide rul | $37.55 | 02-May-2008 | 10 |
| Keuffel & Esser Log Log Duplex Pocket Slide Ru | $37.01 | 02-May-2008 | 7 |
| "VINTAGE KEUFFEL & ESSER 4080-5 22 1/4"" SLIDE | $37.00 | 04-May-2008 | 9 |
| K & E Slide rule 10 DECI-LON 68 1100 | $36.84 | 20-May-2008 | 11 |
| 5 Slide Rules with Leather Cases K+E Versalog | $36.00 | 15-May-2008 | 9 |
| Vintage K & E Keuffel & Esser Slide Rule | $36.00 | 25-May-2008 | 5 |
| Keuffel & Esser Slide Rule in Leather Case/Bel | $36.00 | 12-May-2008 | 17 |
| K&E Slide Rule (vintage) | $36.00 | 21-May-2008 | 4 |
| K&E Keuffel Esser Log Decitrig Slide Rule N 40 | $35.78 | 02-May-2008 | 5 |
| K & E SLIDE RULE MODEL 4081-3 with TWO MANUALS | $35.00 | 18-May-2008 | 17 |
| "K&E Mahogany Slide Rule, model# N 4053-2" | $34.00 | 18-May-2008 | 4 |
| Vintage Kueffel Esser Sliderule 4081-5 w/ Case | $33.44 | 13-May-2008 | 8 |
| Antique 4088-3 POLYPHASE DUPLEX SLIDE RULE K&E | $32.77 | 27-May-2008 | 2 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE-BOOKS-CASES | $32.51 | 20-May-2008 | 9 |
| VINTAGE K&E 4181-1C / 68-1282 SLIDE RULE W/CAS | $32.50 | 06-May-2008 | 10 |
| "VINTAGE KEUFFEL & ESSER SLIDE RULE 4053-5 20" | $32.10 | 21-May-2008 | 3 |
| 14 Vintage Lot Slide Rules Sterling Post K&E L | $32.09 | 21-May-2008 | 3 |
| vintage K & E 4053-3 polyphase slide rule with | $31.49 | 11-May-2008 | 10 |
| "Keuffel & Esser K&E 4081-3 RT Slide Rule, Cas | $31.01 | 18-May-2008 | 13 |
| "Keuffel & Esser K&E 4081-3 SRT Slide Rule, Ca | $31.00 | 13-May-2008 | 12 |
| Keuffel & Esser Log Log Duplex Trig SLIDE RULE | $31.00 | 12-May-2008 | 13 |
| "Keuffel & Esser K&E 681497 4071-3 slide rule, | $31.00 | 18-May-2008 | 3 |
| KEUFFEL & ESSER K&E N4081-3 DECITRIG SLIDE RUL | $31.00 | 11-May-2008 | 7 |
| SLIDE RULE K&E COPYRIGHT 1947 MODEL N4081-3 CA | $31.00 | 01-May-2008 | 3 |
| Keuffel & Esser Slide Rule Catalog 1958 23 Pag | $31.00 | 10-May-2008 | 2 |
| K & E LOG LOG DUPLEX VECTOR SLIDE RULE | $29.88 | 03-May-2008 | 4 |
| Doric K & E Co 9068 Slide Rule Case & 1947 Man | $28.00 | 25-May-2008 | 4 |
| vintage K&E SLIDE RULE 4083-3 in leather case. | $27.92 | 19-May-2008 | 6 |
| K & E BEGINNERS SLIDE RULE IN CASE | $27.50 | 11-May-2008 | 6 |
| 40's vintage K & E 4081-3 slide rule w/ leathe | $27.50 | 24-May-2008 | 1 |
| US MIlitary Kueffel & Esser Slide Rule In Case | $27.00 | 02-May-2008 | 7 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE w/CASE. Pat | $27.00 | 05-May-2008 | 4 |
| KEUFFEL & ESSER K & E 4058-C Beginner's SLIDE | $27.00 | 27-May-2008 | 7 |
| Vintage Keuffel & Esser Polyphase Slide Rule & | $27.00 | 08-May-2008 | 10 |
| "Keuffel & Esser Polyphase Slide Rule, Pat. 19 | $26.49 | 05-May-2008 | 14 |
| Keuffel & Esser (K&E) Slide Rule Magnifier | $26.01 | 25-May-2008 | 6 |
| Keuffel & Esser 4161 -1 and Fearns Circular Sl | $26.00 | 25-May-2008 | 9 |
| 3 SLIDE RULES W/ LEATHER CASES 1 K & E 2 PICKE | $26.00 | 11-May-2008 | 3 |
| Keuffel Esser K&E Slide Rule Sliderule 4081-3 | $24.74 | 18-May-2008 | 4 |
| K&E slide rule 4081-3 | $24.46 | 25-May-2008 | 6 |
| K & E 4081-3 LOG- LOG DUPLEX DECITRIG SLIDE RU | $24.17 | 02-May-2008 | 4 |
| Vintage Keuffel & Esser K & E slide rule 4091- | $23.00 | 14-May-2008 | 3 |
| Vintage Keuffel & Esser 1947 N4081-3 Slide Rul | $23.00 | 17-May-2008 | 11 |
| "K&E Vintage Slide Rule,#4053-2.NR." | $23.00 | 05-May-2008 | 2 |
| Vintage K & E Log Log Duplex Decitrig Slide Ru | $22.72 | 27-May-2008 | 4 |
| K & E slide rule 4071-3 | $22.27 | 25-May-2008 | 4 |
| KEUFFEL & ESSER VINTAGE SLIDE RULE | $22.22 | 29-May-2008 | 7 |
| ** vintage K & E ** SLIDE RULE ** #874 with CA | $22.00 | 25-May-2008 | 5 |
| K & E vintage 6 inch slide rule Doric 9061-1 w | $21.75 | 17-May-2008 | 3 |
| K & E Log Log Duplex Decitrig Slide Rule (4081 | $21.71 | 04-May-2008 | 5 |
| ANTIQUE KEUFFEL & ESSER SMALL SLIDE RULE PAT J | $21.00 | 20-May-2008 | 2 |
| K&E DORIC 9071-3 Slide Rule Sliderule w Case | $20.50 | 29-May-2008 | 4 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE #4092-3 W/C | $20.50 | 24-May-2008 | 3 |
| Vintage 1950's Keuffel & Esser K & E slide rul | $20.50 | 14-May-2008 | 2 |
| KEUFFEL AND ESSER SLIDE RULE K&E MODEL # 4092- | $20.50 | 20-May-2008 | 4 |
| Vintage Keuffel & Esser Slide Rule | $20.50 | 13-May-2008 | 5 |
| K & E Slide Rule 4181-3 and hardback manual | $20.50 | 24-May-2008 | 5 |
| Keuffel & Esser Co Vintage Slide Rule W/Case # | $20.50 | 21-May-2008 | 6 |
| KEUFFEL AND ESSER SLIDE RULE MODEL # 4081-3 | $20.50 | 17-May-2008 | 2 |
| Vintage Keuffel & Esser slide rule w/case - 40 | $20.30 | 02-May-2008 | 4 |
| K & E LOG LOG DUPLEX DECITRIG SLIDE RULE® No40 | $20.00 | 20-May-2008 | 2 |
| Vintage Keuffel & Esser slide rule Model no. 4 | $19.99 | 09-May-2008 | 2 |
| VINTAGE KEUFFEL & ESSER CO. NY SLIDE RULE 4090 | $19.99 | 04-May-2008 | 1 |
| "1952 K&E 4161 POCKET SLIDE RULE~LEATHER CASE, | $19.70 | 28-May-2008 | 4 |
| "Old KEUFFEL & ESSER SLIDE RULE, BEGINNER'S w/ | $19.49 | 27-May-2008 | 4 |
| VINTAGE K+E SLIDE RULE W/LEATHER CASE ENGINEER | $19.45 | 14-May-2008 | 7 |
| K & E DORIC SLIDE RULE - 6 INCH | $19.39 | 11-May-2008 | 3 |
| Slide Rule Book Manual K&E Log Log Decitrig 40 | $18.50 | 12-May-2008 | 5 |
| "K&E 4161-3 Mannheim Slide Rule w/ Box, Case & | $17.50 | 06-May-2008 | 2 |
| KAUFFEL & ESSER Wooden Beginner's Slide Rule M | $17.50 | 04-May-2008 | 2 |
| LOT 7 VINTAGE SLIDE RULE CASES KEUFFEL & ESSER | $17.38 | 10-May-2008 | 2 |
| VINTAGE KEUFFEL & ESSER WOOD SLIDE RULE #4041 | $17.17 | 27-May-2008 | 2 |
| K & E Slide Rule - 6 inch | $16.50 | 20-May-2008 | 6 |
| LOT 4 VINTAGE SLIDE RULES KEUFFEL & ESSER MANN | $16.50 | 20-May-2008 | 2 |
| "Keuffel & Esser, Dietzen, Relay & Sterling Sl | $16.38 | 23-May-2008 | 3 |
| VINTAGE K+E KEUFFEL & ESSER POCKET SLIDE RULE | $16.05 | 24-May-2008 | 4 |
| VINTAGE KEUFFEL & ESSER CO SLIDE RULE MANUAL | $16.05 | 04-May-2008 | 4 |
| K & E KEUFFEL & ESSER SLIDE RULE N9081-3 * MIN | $16.05 | 06-May-2008 | 9 |
| Keuffel & Esser Co. 4181-3 Vintage Slide Rule | $16.05 | 25-May-2008 | 3 |
| 3 Slide Rules K E 4081-3 Post 1447 Lafayette F | $15.99 | 23-May-2008 | 1 |
| Keuffel & Esser Slide Rule Lapel Pin | $15.86 | 22-May-2008 | 5 |
| KEUFFEL & ESSER K & E Polyphase 4053-3 SLIDE R | $15.50 | 27-May-2008 | 6 |
| KEUFFEL & ESSER CO. POCKET SLIDE RULE VINTAGE | $15.00 | 22-May-2008 | 6 |
| Keuffel & Esser Co. Slide Rule w/Leather Sleev | $14.99 | 27-May-2008 | 1 |
| Vintage KEUFFEL & ESSER Slide Rule N4058W & Sh | $14.95 | 27-May-2008 | 1 |
| K E Keuffel Esser Slide Rule Sliderule 4081-3 | $14.27 | 06-May-2008 | 5 |
| Vintage K&E Keuffel & Esser Deci-Lon Slide Rul | $13.50 | 09-May-2008 | 8 |
| K&E slide rule N4053-3 | $13.50 | 25-May-2008 | 3 |
| Keuffel & Esser Merchants Slide Rule #68 1775 | $13.09 | 22-May-2008 | 2 |
| K & E Slide Rules Deci-Lon: An Instruction Man | $13.02 | 15-May-2008 | 2 |
| "Keuffel & Esser Slide Rule 12.5"" With Book a | $13.00 | 28-May-2008 | 3 |
| Polyphase K & E Slide Rule in box | $12.95 | 19-May-2008 | 1 |
| VINTAGE KEUFFEL & ESSER K&E Duplex Trig Slide | $12.50 | 28-May-2008 | 4 |
| Keuffel Esser Slide Rule N4053 3 Case Vintage | $12.50 | 26-May-2008 | 2 |
| "3 Slide Rules - K&E #4081, K&E #4055, Sun Hem | $12.27 | 04-May-2008 | 3 |
| "VINTAGE keuffel & esser NY SLIDE RULE,GLASS S | $12.08 | 13-May-2008 | 4 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE EXCELLENT I | $12.00 | 04-May-2008 | 1 |
| K&E KUEFFEL & ESSER BEGINNERS SLIDE RULE N4058 | $11.60 | 04-May-2008 | 3 |
| "SLIDE RULE K&E 68-1617 CASE, MANUA,L BOOKLET, | $11.50 | 06-May-2008 | 4 |
| KEUFFEL & ESSER SLIDE RULE NO 4058C | $11.50 | 11-May-2008 | 3 |
| Keuffel & Eseser slide rule 1955 | $11.50 | 23-May-2008 | 2 |
| "Slide rule - Keuffel & Esser - No. 4083-3, ma | $11.50 | 04-May-2008 | 4 |
| KEUFFEL ESSER SLIDE RULE #4053-3 | $11.49 | 20-May-2008 | 3 |
| K + E SLIDE RULES INSTRUCTION MANUAL 1955 KEUF | $11.39 | 10-May-2008 | 2 |
| KEUFFEL&ESSER CO.//BEGINNERS SLIDE RULE 4058C | $11.30 | 06-May-2008 | 4 |
| KEUFFEL & ESSER K&E MAHOGANY SLIDE RULE SLIDER | $11.00 | 25-May-2008 | 2 |
| Keuffel & Esser 4081-3 Slide Rule (Plus Case a | $10.63 | 28-May-2008 | 5 |
| VINTAGE 1936 KEUFFEL & ESSER 4088-3 SLIDE RULE | $10.50 | 04-May-2008 | 1 |
| Vintage Keuffel-Esser Beginner Slide Rule W/Ca | $10.50 | 30-May-2008 | 3 |
| DORIC K & E SLIDE RULE WITH LEATHER CASE - VIN | $10.50 | 16-May-2008 | 4 |
| 1944 Keuffel & Esser Co. Slide Rule in Origina | $10.50 | 13-May-2008 | 3 |
| Vintage Antique Keuffel & Esser Slide Rule Rul | $10.50 | 09-May-2008 | 6 |
| KEUFFEL & ESSER CO. NY ENGINEERING SLIDE RULE | $10.50 | 11-May-2008 | 2 |
| 3 Rulers Slide Rule Lars Keuffel & Esser Log D | $10.49 | 25-May-2008 | 2 |
| 'Real Engineers' K&E wooden slide rule N4081-3 | $10.49 | 12-May-2008 | 2 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE 1947 DORIC | $10.49 | 04-May-2008 | 3 |
| KEUFFEL ESSER slide rule 1947 N4081-3 duplex d | $10.49 | 20-May-2008 | 3 |
| K&E Keuffel & Esser Slide Rule 4071-3 Box & Le | $10.49 | 19-May-2008 | 2 |
| vintage 1947 KEUFFEL & ESSER CO. SLide Rule & | $10.49 | 19-May-2008 | 2 |
| Keuffel & Esser Co. NY Beginner's Slide Rule 4 | $10.49 | 04-May-2008 | 2 |
| Vintage Keuffel & Esser 4056 Slide Rule w/Case | $10.49 | 04-May-2008 | 2 |
| Keuffel & Esser No. 4070 Polyphase Duplex Slid | $10.49 | 06-May-2008 | 2 |
| KEUFFEL AND ESSER SLIDE RULE K&E MODEL # 4092- | $10.49 | 17-May-2008 | 2 |
| Keuffel & Esser Slide Rule Manual - 126 pages | $10.25 | 03-May-2008 | 3 |
| "Vintage K+E Slide Rule, Case, Manual, Origina | $10.13 | 31-May-2008 | 5 |
| Vintage Keuffel Engineering Drafting Slide Rul | $10.05 | 04-May-2008 | 2 |
| Slide Rule K&E N4053-3 Wood/ivory(?) with case | $10.00 | 02-May-2008 | 1 |
| K & E Vintage 4053-3 Polyphase Slide Rule with | $10.00 | 27-May-2008 | 2 |
| Vintage Keuffel & Esser K&E 4053-3 slide rule | $9.99 | 28-May-2008 | 1 |
| Vintage 1935 Keuffel & Esser Slide Ruler 4081- | $9.99 | 12-May-2008 | 1 |
| Keuffel & Esser Slide Rule with Case | $9.99 | 28-May-2008 | 1 |
| K E Keuffel Esser Slide Rule Sliderule 4070-3 | $9.99 | 06-May-2008 | 1 |
| KEUFFEL & ESSER 4081 SLIDE RULE & LEATHER CASE | $9.99 | 01-May-2008 | 1 |
| VINTAGE KEUFFEL & ESSER 1900 SLIDE RULE 4053-3 | $9.99 | 25-May-2008 | 1 |
| Vintage Keuffel & Esser Co. Slide Rule N4058W | $9.99 | 04-May-2008 | 1 |
| KEUFFEL AND ESSER SLIDE RULE WITH CASE | $9.99 | 14-May-2008 | 1 |
| Vintage K&E Keuffel & Esser 4081-3 Slide Rule | $9.99 | 04-May-2008 | 1 |
| "3 Slide Rules - K&E, Post, and Sterling" | $9.99 | 04-May-2008 | 1 |
| K&E SLIDE RULE MANUAL Log Log Duplex Decitrig | $9.99 | 24-May-2008 | 1 |
| KEUFFEL & ESSER SLIDE RULER CONVERSION FACTORS | $9.99 | 18-May-2008 | 1 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE AND CASE K& | $9.99 | 26-May-2008 | 1 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE #4088-3 & S | $9.99 | 02-May-2008 | 1 |
| "KEUFFEL & ESSER #4053-3S, 10 1/2"" SLIDE RULE | $9.99 | 18-May-2008 | 1 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE N4053-3 W C | $9.99 | 04-May-2008 | 1 |
| 1936 K & E POCKET SLIDE RULE NO.4098A C.REISS | $9.99 | 17-May-2008 | 1 |
| Vintage K & E slide rule #4053-3 with case | $9.99 | 26-May-2008 | 1 |
| VINTAGE KEUFFEL & ESSER CO. #4088-3 SLIDE RULE | $9.99 | 30-May-2008 | 1 |
| "Keuffel & Esser ""Log Log"" slide rule; 4181- | $9.99 | 05-May-2008 | 1 |
| 1947 KEUFFEL ESSER LOG DUPLEX DECITRIG SLIDE R | $9.99 | 02-May-2008 | 1 |
| Keuffel & Esser (K+E) Engineering Slide Rule | $9.99 | 22-May-2008 | 1 |
| Kueffel and Esser Slide Rule 4092 | $9.99 | 08-May-2008 | 1 |
| K&E Slide Rule 4088-3 Keuffel & Esser POLYPHAS | $9.99 | 05-May-2008 | 1 |
| K&E 4053-3S Polyphase Slide Rule w/ Manual & C | $9.99 | 31-May-2008 | 1 |
| K & E slide rule 4083-3 Keuffel & Esser log lo | $9.95 | 20-May-2008 | 1 |
| Keuffel Esser K & E slide rule POLYPHASE DUPLE | $9.95 | 20-May-2008 | 1 |
| K&E Slide Rules Manual - Jet-Log and Decitrig | $9.75 | 15-May-2008 | 1 |
| Vintage K + E Pocket Slide Rule #4150-1 w/Leat | $9.50 | 11-May-2008 | 2 |
| KEUFFEL & ESSER SLIDE RULE NO 4058 K&S CO BEGI | $9.50 | 01-May-2008 | 2 |
| Slide Rule Keuffel & Esser Co. Leather Case | $9.49 | 12-May-2008 | 3 |
| 2 KEUFFEL ESSER SLIDE RULE MANUALS FOR No. 68 | $8.99 | 22-May-2008 | 1 |
| 2 Vintage K & E Slide Rule Manuals #4081 and N | $8.90 | 14-May-2008 | 2 |
| K E Keuffel Esser Slide Rule Sliderule DORIC 9 | $8.49 | 13-May-2008 | 2 |
| Vintage Keuffel & Esser 4088-3 Dec.22 08 Slide | $7.99 | 17-May-2008 | 1 |
| Keuffel & Esser Slide Rule model 4092 w/leathe | $7.99 | 13-May-2008 | 1 |
| Dietzgen Slide Rule 1750 in K&E Mannheim 4041 | $7.99 | 20-May-2008 | 1 |
| Vintage K & E KEUFFEL & ESSER Slide Rule 4088- | $7.99 | 05-May-2008 | 1 |
| K & E SLIDE RULES: Complete Instruction Guide | $7.95 | 11-May-2008 | 1 |
| Vintage Keuffel & Esser Slide Rule Instruction | $7.02 | 11-May-2008 | 3 |
| KEUFFEL & ESSER K&E SLIDE RULE 1961 | $7.00 | 18-May-2008 | 2 |
| Vintage K+E Keuffel & Esser Slide Rule 4081-3 | $6.56 | 01-May-2008 | 2 |
| Vintage Keuffel & Esser Co NY Slide Rule with | $6.50 | 04-May-2008 | 2 |
| "K&E and Versalog Books, Slide Rule Instructio | $6.05 | 06-May-2008 | 4 |
| Keuffel and Esser Co. N.Y. Slide Rule w/ Leath | $5.99 | 12-May-2008 | 1 |
| K & E Kueffel & Esser Slide Rule Instruction B | $5.99 | 12-May-2008 | 1 |
| OLD 1939 K&E 4080 LOG LOG DUPLEX TRIG SLIDE RU | $5.99 | 20-May-2008 | 1 |
| Keuffel & Esser Co. 4081-3 slide rule w/case | $5.50 | 25-May-2008 | 7 |
| Keuffel Esser 4053 3 slide ruler Pat 1900 w/ c | $5.50 | 12-May-2008 | 2 |
| Antique 1930's Keuffel & Esser Vector Slide Ru | $5.50 | 11-May-2008 | 3 |
| K & E 4058W Slide Rule | $5.50 | 27-May-2008 | 4 |
| K & E Polyphase 4053 3s Slide Rule Keuffel & E | $5.24 | 01-May-2008 | 3 |
| VINTAGE KEUFFEL & ESSER SLIDE RULER CASE & INS | $5.00 | 05-May-2008 | 1 |
| 1939 VINTAGE K&E MODEL 4081-3 SLIDE RULE & CAS | $4.99 | 21-May-2008 | 1 |
| KEUFFEL & ESSER CO.N.Y. SLIDE RULE | $4.99 | 13-May-2008 | 1 |
| Slide Rule + Case Acu-Math 400 Keuffel & Esser | $4.99 | 20-May-2008 | 1 |
| Dietzgen Slide Rule & Keuffel & Esser K&E Leat | $4.99 | 10-May-2008 | 1 |
| 1900's K&E Mannheim Slide Rule w/ Case & Instr | $4.99 | 23-May-2008 | 2 |
| Vintage Slide Rule Property US Govt Keuffel & | $4.99 | 10-May-2008 | 1 |
| Keuffel & Esser Slide Rule 4081-3 w/Hard Case | $4.99 | 06-May-2008 | 1 |
| VINTAGE KEUFFEL & ESSER ENGINEERING SLIDE RULE | $4.95 | 25-May-2008 | 1 |
| K E Slide Rule Manual No 68 2055 Decitrig Keuf | $4.95 | 18-May-2008 | 1 |
| 1938 K & E Mannheim Slide Rule Manual 4031S 40 | $4.95 | 18-May-2008 | 1 |
| KEUFFEL & ESSER SLIDE RULE 1947 DORIC N9081-3 | $4.75 | 04-May-2008 | 4 |
| KEUFFEL&ESSER vintage slide Rule New Britain C | $3.99 | 15-May-2008 | 1 |
| VINTAGE K&E KUEFFEL ESSER CO. BEGINNER'S SLIDE | $3.99 | 20-May-2008 | 1 |
| "K & E Slide Rule Manual only,Polyphase,No.68 | $3.30 | 12-May-2008 | 3 |
| Older Keuffel And Esser Slide Rule Plus Case - | $3.24 | 01-May-2008 | 2 |
| "Keuffel & Esser Co., The Polyphase Slide Rule | $2.99 | 27-May-2008 | 1 |
| "Slide Rule Users Manual, 1939 Keuffel & Esser | $1.99 | 10-May-2008 | 1 |
| Vintage Keuffel & Esser Co. 019101 Slide Ruler | $1.99 | 23-May-2008 | 1 |
| 2 Slide Rule Manuals - Post Versalog and K&E G | $1.04 | 28-May-2008 | 2 |
| VINTAGE K&E LOG DUPLEX DECITRIG SLIDE RULE w/ | $0.99 | 27-May-2008 | 1 |
| Slide rule Keuffel & Esser NY 4053 35 tool too | $0.99 | 24-May-2008 | 1 |
| KEUFFEL&ESSER SLIDE RULE / LEATHER CASE/ OLD C | $0.99 | 25-May-2008 | 1 |
| 2 Slide Rule Manuals - K&E 4161 and Mannheim | $0.99 | 28-May-2008 | 1 |
| Vintage KEUFFEL & ESSER Slide Rule Model 4055 | $0.99 | 02-May-2008 | 1 |
| Keuffel & Ester 4092-3 Slide Rule with Case | $0.99 | 28-May-2008 | 1 |
| Vintage WWII Graphical Firing Table K E Slide | $189.00 | 14-May-2008 | 0 |
| Big Slide Rule Slidedisk Emil Tröger Circular | $149.00 | 02-May-2008 | 0 |
| Big Slide Rule Slidedisk Emil Tröger Circular | $139.00 | 19-May-2008 | 0 |
| Big Slide Rule Slidedisk Emil Tröger Circular | $139.00 | 09-May-2008 | 0 |
| VINTAGE KEUFFEL & ESSER CO. K E SLIDE RULERS a | $125.00 | 02-May-2008 | 0 |
| VINTAGE KEUFFEL & ESSER CO. K E SLIDE RULERS a | $125.00 | 21-May-2008 | 0 |
| Doric K&E slide ruler Apollo Gemini NASA engin | $99.00 | 21-May-2008 | 0 |
| Doric K&E slide ruler Apollo Gemini NASA engin | $99.00 | 02-May-2008 | 0 |
| "Beautiful K&E Mahogany Slide Rule, model# N 4 | $75.00 | 11-May-2008 | 0 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $75.00 | 03-May-2008 | 0 |
| 1947 KEUFFEL ESSER K E SLIDE RULE LL DUPLEX TR | $74.95 | 28-May-2008 | 0 |
| 1947 KEUFFEL ESSER K E SLIDE RULE LL DUPLEX TR | $59.95 | 31-May-2008 | 0 |
| K+E JetLog Jr #4181-1 slide rule w/sheath + ex | $49.99 | 09-May-2008 | 0 |
| Vintage K E 4081-3S Log Log Duplex Decitrig Sl | $49.99 | 31-May-2008 | 0 |
| "K&E 4053-3 10""SLIDE RULE FROM THE EARLY 1900 | $35.00 | 31-May-2008 | 0 |
| VINTAGE KEUFFEL & ESSER Co. SLIDE RULE # 68206 | $29.99 | 04-May-2008 | 0 |
| Vintage K&E Slide Rule 4081-3 and much more | $29.99 | 27-May-2008 | 0 |
| Keuffel & Esser K & E Drafting Tools Slide Rul | $24.95 | 22-May-2008 | 0 |
| Antique Slide Ruler by Keuffel & Esser Co. | $20.00 | 21-May-2008 | 0 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE #4092-3 W/C | $19.99 | 17-May-2008 | 0 |
| Keuffel & Esser Vintage Slide Rule With Case | $19.99 | 17-May-2008 | 0 |
| Vintage Keuffel & Esser slide rule Model no. 4 | $19.99 | 04-May-2008 | 0 |
| "Keuffel & Esser Slide Rule 12.5"" With Book a | $19.00 | 21-May-2008 | 0 |
| KEUFFEL & ESSER 1947 4081-3 SRT SLIDE RULE | $17.99 | 25-May-2008 | 0 |
| 2 Slide Rules K & E US and Diwa Denmark | $16.00 | 12-May-2008 | 0 |
| vintage keuffel & Esser slide rule #4080-03 NI | $15.00 | 11-May-2008 | 0 |
| "vintage K & E polyphase 4053-3 slide rule, ca | $15.00 | 04-May-2008 | 0 |
| "vintage K & E polyphase 4053-3 slide rule, ca | $15.00 | 18-May-2008 | 0 |
| KEUFFEL & ESSER SLIDE RULE MANUAL NO. 4161 & C | $14.99 | 11-May-2008 | 0 |
| LOT 4 VINTAGE SLIDE RULES KEUFFEL & ESSER MANN | $14.99 | 10-May-2008 | 0 |
| VTG TIN KEUFFEL ESSER RULE SHOP TOOL W/AD FOLD | $14.95 | 25-May-2008 | 0 |
| Keuffel & Esser~1939 Manual~SLIDE RULES BOOKLE | $13.75 | 06-May-2008 | 0 |
| Antique Slide Ruler by Keuffel & Esser Co. | $10.00 | 07-May-2008 | 0 |
| Beginner's Slide Rule made by Keuffer & Esser | $10.00 | 03-May-2008 | 0 |
| Vintage Keuffel & Esser Co. NY Slide Rule Rule | $9.99 | 21-May-2008 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $9.99 | 21-May-2008 | 0 |
| VINTAGE K & E 4058W WOOD SLIDE RULE NR | $9.99 | 05-May-2008 | 0 |
| SLIDE RULE KEUFFEL & ESSER BEGINNER'S 4058 W | $9.99 | 05-May-2008 | 0 |
| Vintage Keuffel & Esser K&E 4053-3 slide rule | $9.99 | 21-May-2008 | 0 |
| K E Keuffel Esser Slide Rule Sliderule DORIC 9 | $9.99 | 06-May-2008 | 0 |
| vintage K & E 4088-3 slide rule with case NICE | $9.99 | 04-May-2008 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $9.99 | 14-May-2008 | 0 |
| KEUFFEL & ESSER POLYPHASE SLIDE RULE 4053-3 W/ | $9.99 | 14-May-2008 | 0 |
| Vintage Keuffel Esser K&E Co. Slide Rule Ruler | $9.99 | 22-May-2008 | 0 |
| VINTAGE KEUFFEL & ESSER CO. #4088-3 SLIDE RULE | $9.99 | 23-May-2008 | 0 |
| 1926 KEUFFEL & ESSER 4092-3 DUPLEX SLIDE RULE | $9.99 | 17-May-2008 | 0 |
| "KLOCKNER MOELLER SLIDE RULER , K&E PARAGON 14 | $9.99 | 24-May-2008 | 0 |
| 1926 KEUFFEL & ESSER 4092-3 DUPLEX SLIDE RULE | $9.99 | 24-May-2008 | 0 |
| Vintage 2 Keuffel & Esser Co & 1 Fullerton Sli | $9.99 | 17-May-2008 | 0 |
| K&E KEUFFEL & ESSER SLIDE RULE 4058W & CASE | $9.99 | 03-May-2008 | 0 |
| Vintage Keuffel & Esser Co. NY Slide Rule Rule | $9.99 | 01-May-2008 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $9.99 | 07-May-2008 | 0 |
| "KEUFFEL & ESSER K&E 20 INCH SLIDE RULE "" <40 | $9.99 | 25-May-2008 | 0 |
| 1947 KUEFFEL & ESSER LOG DUPLEX DECITRIG SLIDE | $9.99 | 26-May-2008 | 0 |
| vintage K & E 4088-3 slide rule with case NICE | $9.99 | 18-May-2008 | 0 |
| Vintage Keuffel & Esser K & E Slide Rule 1947 | $9.99 | 18-May-2008 | 0 |
| "VINTAGE KEUFFEL & ESSER CO., NEW YORK SLIDE R | $9.99 | 19-May-2008 | 0 |
| KEUFFEL & ESSER SLIDE RULE 1908 | $9.99 | 05-May-2008 | 0 |
| Keuffel & Esser K+E Slide Rule Manual 41875 De | $9.99 | 12-May-2008 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $9.99 | 28-May-2008 | 0 |
| VINTAGE SLIDE RULE KEUFFEL & ESSER CO. NEW YOR | $9.99 | 19-May-2008 | 0 |
| Vintage K&E 4080-3 LOG LOG DUPLEX TRIG Slide R | $9.99 | 12-May-2008 | 0 |
| 1947 KUEFFEL & ESSER CO LOG DUPLEX DECITRIG SL | $9.99 | 19-May-2008 | 0 |
| Kueffel and Esser Slide Rule. Log Log Decitrig | $9.99 | 08-May-2008 | 0 |
| SLIDE RULE KEUFFEL ESSER BEGINNER VINTAGE 4058 | $9.99 | 20-May-2008 | 0 |
| Vintage 1935 Keuffel & Esser Slide Ruler 4081- | $9.99 | 05-May-2008 | 0 |
| "Slide Rule Keuffel&Esser 4053-3 box,case,pape | $9.99 | 30-May-2008 | 0 |
| X7 K&E Keuffel & Esser Beginner's Slide Rule 4 | $9.99 | 31-May-2008 | 0 |
| Vintage Keuffel & Esser 68 1130 Deci-Lon Slide | $9.99 | 31-May-2008 | 0 |
| "1953 KEUFFEL & ESSER CO SLIDE RULE MANUAL & " | $9.95 | 14-May-2008 | 0 |
| K&E Keuffel Esser Slide Rule Boxed No. 4054 | $9.95 | 13-May-2008 | 0 |
| 1955 Keuffel & Esser K&E Slide Rule Manual-No. | $9.95 | 25-May-2008 | 0 |
| "1953 KEUFFEL & ESSER CO SLIDE RULE MANUAL & " | $9.95 | 28-May-2008 | 0 |
| "K&E Slide Rule, with hard leather case NO- 40 | $9.80 | 25-May-2008 | 0 |
| KEUFFEL AND ESSER Co. SLIDE RULER / VENUS 10 P | $9.80 | 21-May-2008 | 0 |
| 1928 KEUFFEL & ESSER #4058W FAVORITE SLIDE RUL | $9.57 | 05-May-2008 | 0 |
| KEUFFEL & ESSER SLIDE RULE MANUAL NO. 4161 & C | $8.99 | 21-May-2008 | 0 |
| Keuffel and Esser Slide Rule 4181 - 3 Copyrigh | $8.99 | 25-May-2008 | 0 |
| Vintage 1947 K & E N4080-3 Slide Rule with cas | $7.99 | 02-May-2008 | 0 |
| KEUFFEL ESSER SLIDE RULE VINTAGE 4058 W BEGINN | $7.99 | 27-May-2008 | 0 |
| Vintage Keuffel & Esser Slide Rule | $5.99 | 06-May-2008 | 0 |
| 1928 KEUFFEL & ESSER #4058W FAVORITE SLIDE RUL | $5.57 | 14-May-2008 | 0 |
| Keuffel & Esser slide ruler | $5.00 | 26-May-2008 | 0 |
| K+E Slide Rule Manual No. 4081 | $5.00 | 25-May-2008 | 0 |
| K+E Slide Rule Manual No. 4081 | $5.00 | 25-May-2008 | 0 |
| K+E Slide Rule Manual No. 68 2063 | $5.00 | 25-May-2008 | 0 |
| SLIDE RULE KEUFFEL & ESSER N.Y. LEATHER CASE | $5.00 | 10-May-2008 | 0 |
| K&E Keuffel & Esser Slide Rule sliderules 1953 | $5.00 | 01-May-2008 | 0 |
| Keuffel & Esser Co. Beginner's Slide Rule-N405 | $4.99 | 11-May-2008 | 0 |
| Keuffel & Esser Co. Beginner's Slide Rule-N405 | $4.99 | 25-May-2008 | 0 |
| "Vintage K&E 10"" 20-Scale Slide Rule w/ Case" | $4.99 | 11-May-2008 | 0 |
| "KEUFFEL & ESSEX SLIDE RULE, 4081-3S,10"", Lea | $4.99 | 25-May-2008 | 0 |
| VINTAGE K&E SLIDE RULE MANUAL | $4.99 | 06-May-2008 | 0 |
| "VINTAGE KEUFFEL & ESSER CO., NEW YORK SLIDE R | $4.99 | 28-May-2008 | 0 |
| Pair Vintage Slide Rules Keuffel & Esser | $4.99 | 05-May-2008 | 0 |
| KEUFFEL ESSER N4081-3 SLIDE RULE 1947 LOG DECI | $4.99 | 03-May-2008 | 0 |
| K&E BEGINNERS SLIDE RULE w/ CASE KEUFFEL and E | $4.44 | 29-May-2008 | 0 |
| 1928 K&E Slide Rule Instructions Keuffel Esser | $4.00 | 28-May-2008 | 0 |
| 1924 The Polyphase Duplex Slide Rule Keuffel & | $1.99 | 16-May-2008 | 0 |
| Vintage Keuffel & Esser Beginner's Slide Rule | $1.25 | 25-May-2008 | 0 |
| VINTAGE KEUFFEL & ESSER BEGINNER'S SLIDE RULE | $0.99 | 16-May-2008 | 0 |
| Vintage KEUFFEL & ESSER Slide Rule Model 4080- | $0.99 | 02-May-2008 | 0 |
| 1938 Keuffel & Esser POLYPHASE Slide Rule Book | $0.99 | 28-May-2008 | 0 |
| Pair of Keuffel & Esser Slide Rules - 1900 Pat | $0.99 | 06-May-2008 | 0 |
| K&E Duplex Slide Rule S51-9678 | $0.50 | 06-May-2008 | 0 |