| Keuffel and Esser |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Mar-2008 |
| 1881 KEUFFEL & ESSER NY ANTIQUE CALCULATOR SLI | $480.00 | 24-Mar-2008 | 22 |
| K & E Thacher Calculator slide rule reproducti | $256.00 | 16-Mar-2008 | 8 |
| Keuffel & Esser Model 68-1100 Deci-Lon Slide R | $192.48 | 06-Mar-2008 | 5 |
| VINTAGE in BOX POCKET K&E DECILON 68-1130 SLID | $164.48 | 02-Mar-2008 | 7 |
| Keuffel & Esser 4082-3 slide rule w/leather ca | $158.49 | 05-Mar-2008 | 4 |
| VINTAGE K&E KEUFFEL & ESSER CO. 22 INCH SLIDE | $155.50 | 16-Mar-2008 | 11 |
| Keuffel & Esser Model 68-1100 Deci-Lon Slide R | $152.50 | 25-Mar-2008 | 7 |
| K&E 22 Inch Slide Rule Model 4083-5 | $140.00 | 16-Mar-2008 | 10 |
| Big Slide Rule Slidedisk Emil Tröger Circular | $139.00 | 12-Mar-2008 | 1 |
| One Dozen of K & E Slide Rules in Box!...Last | $134.48 | 05-Mar-2008 | 14 |
| K&E Deci Lon Mid Century Modern Pocket Slide R | $134.27 | 25-Mar-2008 | 16 |
| K+E No. 4081 Log Duplex Decitrig Slide Rule co | $122.50 | 30-Mar-2008 | 14 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $122.50 | 21-Mar-2008 | 6 |
| KUEFFEL & ESSER 4181-3 Slide Rule w/Case-Box-M | $119.99 | 23-Mar-2008 | 1 |
| VINTAGE KEUFFEL & ESSER CO.MANUAL & K&E SLIDE | $116.50 | 30-Mar-2008 | 7 |
| K & E Deci-Lon Slide Rule with Leather case an | $113.27 | 09-Mar-2008 | 10 |
| VINTAGE K&E Keuffel Esser Deci-Lon Slide Rule | $111.11 | 23-Mar-2008 | 14 |
| 3 Keuffel & Esser 4081-5 Slide Rules | $106.40 | 17-Mar-2008 | 10 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $102.50 | 28-Mar-2008 | 3 |
| Keuffel & Esser N4053-5 Slide Rule Rare 20 inc | $96.00 | 26-Mar-2008 | 2 |
| Keuffel & Esser Co. Poly Phase Slide Rule N405 | $90.98 | 06-Mar-2008 | 12 |
| 1955 Keuffel & Esser K&E Slide Rule 4181-3 w/c | $86.00 | 06-Mar-2008 | 20 |
| "In BOX 12"" K&E DECILON 68-1100 SLIDE RULE & | $78.98 | 02-Mar-2008 | 6 |
| Large Vintage Keuffel & Esser Co. Duplex Slide | $78.77 | 15-Mar-2008 | 8 |
| "K&E WYTEFACE OPTICAL SLIDE RULE 40""" | $78.00 | 12-Mar-2008 | 7 |
| "In BOX 12"" K&E DECILON 68-1100 SLIDE RULE & | $76.00 | 30-Mar-2008 | 7 |
| K&E KEUFFEL & ESSER CO. SLIDE RULE.with case ( | $76.00 | 24-Mar-2008 | 22 |
| KEUFFEL & ESSER DECI-LON 10 INCH SLIDE RULE | $72.50 | 10-Mar-2008 | 12 |
| KEUFFEL & ESSER 68 100 DECI-LON 10 SLIDE RULE | $71.00 | 14-Mar-2008 | 9 |
| Slide Rule K+E leather belt case 1947 Keuffel | $69.00 | 11-Mar-2008 | 18 |
| Two Keuffel & Esser (K&E) Slide Rule Magnifier | $67.89 | 04-Mar-2008 | 14 |
| "K&E 20"" OPTICAL SLIDE RULE 71-6020" | $67.00 | 12-Mar-2008 | 5 |
| K&E 68 1100 Decilon Slide Rule | $64.00 | 07-Mar-2008 | 12 |
| K & E SLIDE RULE CASE KEUFFEL ESSER DECILON 68 | $62.99 | 03-Mar-2008 | 12 |
| Vint K & E Keuffel & Esser Deci-Lon Slide Rule | $62.77 | 19-Mar-2008 | 8 |
| Keuffel & Esser Model 68-1100 Deci-Lon Slide R | $61.67 | 22-Mar-2008 | 11 |
| Vintage K& E Keuffel & Esser DECI-LON 10 Slide | $61.00 | 05-Mar-2008 | 9 |
| K& E KEUFFEL & ESSER DECI LON 68-1100 SLIDE RU | $58.77 | 09-Mar-2008 | 9 |
| KUEFFEL & ESSER 4181-1C Slide Rule Case Box Ma | $58.00 | 29-Mar-2008 | 7 |
| "Keuffel & Esser K&E 4083-3 Vector slide rule, | $56.25 | 19-Mar-2008 | 15 |
| VINTAGE K&E DECI-LON SLIDE RULE IN CASE & 186 | $55.99 | 07-Mar-2008 | 13 |
| Vintage Keuffel & Esser Slide Rule | $55.00 | 19-Mar-2008 | 12 |
| "K&E Model N4100 Stadia Slide Rule 11"" for Su | $54.52 | 18-Mar-2008 | 4 |
| mint boxed K&E slide rule leather case perkiom | $53.00 | 17-Mar-2008 | 5 |
| Slide rules * K&E * 68 1210 * With Case * Very | $53.00 | 06-Mar-2008 | 9 |
| "Keuffel & Esser 10"" Slide Rule DeciLon 68-11 | $52.99 | 16-Mar-2008 | 13 |
| KEUFFEL AND ESSER SLIDE RULE K&E MODEL # 4161- | $52.00 | 08-Mar-2008 | 11 |
| K&E 4070-3 slide rule complete & mib | $52.00 | 02-Mar-2008 | 6 |
| Vintage Slide Rule w Case Keuffel Esser K&E De | $51.56 | 08-Mar-2008 | 10 |
| "K+E 4181-3 slide rule w/case, manual + ext" | $51.01 | 21-Mar-2008 | 10 |
| Keuffel & Esser Mo. 68 1210 Slide Rule - Copyr | $51.00 | 13-Mar-2008 | 7 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE | $51.00 | 12-Mar-2008 | 4 |
| VINTAGE K&E KEUFFEL ESSER 4181-3 SLIDE RULE W/ | $51.00 | 09-Mar-2008 | 4 |
| RARE 60'S KEUFFEL & ESSER DECI LON SLIDE RULE | $50.50 | 03-Mar-2008 | 9 |
| K & E slide rule | $50.38 | 20-Mar-2008 | 13 |
| K & E N-4053-5 20 Inch Slide Rule/Case/Box Cur | $49.99 | 05-Mar-2008 | 1 |
| Keuffel & Esser DECI-LON 10 slide rule | $49.99 | 13-Mar-2008 | 1 |
| "Antique ~ 1915 ~ KEUFFEL & ESSER & Co. ~ 20"" | $49.78 | 29-Mar-2008 | 13 |
| Vintage K&E Keuffel Esser Slide Rule w/Case De | $49.58 | 18-Mar-2008 | 11 |
| DECI-LON SLIDE RULE MADE IN USA 1961 KEUFFEL & | $48.77 | 07-Mar-2008 | 13 |
| K & E Slide Rule & Case 4181-3 Keuffel & Esser | $48.58 | 07-Mar-2008 | 3 |
| "VINTAGE 13"" KEUFFER & ESSER SLIDE RULE VGC" | $46.77 | 21-Mar-2008 | 6 |
| Vintage K E Keuffel Esser Pocket Slide Rule Ma | $46.73 | 22-Mar-2008 | 10 |
| Keuffel & Esser K&E Slide Rule Magnifier 4185C | $46.45 | 02-Mar-2008 | 8 |
| "Vintage K & E Keuffel & Esser Deci-Lon 13"" S | $46.03 | 14-Mar-2008 | 9 |
| Unusual K & E Slide Rule w Magnifier & Origina | $46.00 | 04-Mar-2008 | 6 |
| K+E Model 68-1100 Slide Rule with case | $45.00 | 24-Mar-2008 | 8 |
| K & E DECI-LON 68-1100 IVORITE SLIDE RULE W/CA | $44.99 | 25-Mar-2008 | 7 |
| Keuffel & Esser Poly Phase Slide Rule N4053-5 | $44.90 | 13-Mar-2008 | 6 |
| K & E Deci-Lon Slide Rule & Leather Case Clean | $44.77 | 28-Mar-2008 | 8 |
| K&E LOG LOG DUPLEX DECITRIG SLIDE RULE #4081-3 | $44.10 | 05-Mar-2008 | 23 |
| K & E 68 1210 LOG-LOG DUPLEX DECITRIG SLIDE RU | $44.00 | 16-Mar-2008 | 6 |
| 26 VINTAGE SLIDE RULES K&E DIETZGEN ACCUMATH S | $44.00 | 15-Mar-2008 | 18 |
| "K & E KUEFFEL & ESSER CO. SLIDE RULE COPYRIGH | $43.50 | 16-Mar-2008 | 6 |
| Antique 1926 KEUFFEL & ESSER SLIDE RULE 4092-3 | $43.00 | 06-Mar-2008 | 8 |
| "K&E 6"" SLIDE RULE #4181-1" | $42.99 | 05-Mar-2008 | 9 |
| K & E Polyphase 20 N 4053-5 Slide Rule NR | $42.99 | 02-Mar-2008 | 6 |
| EXC Vintage K&E DECI-LON 10 Slide Rule NR! | $42.99 | 16-Mar-2008 | 8 |
| Vintage 1947 Keuffel & Esser Slide Rule & Case | $42.14 | 19-Mar-2008 | 9 |
| "K & E KEUFFEL & ESSER MANNHEIM 20"" SLIDE RUL | $41.00 | 06-Mar-2008 | 3 |
| KEUFFEL & ESSER K&E 68 1210 DECITRIG SLIDE RUL | $41.00 | 23-Mar-2008 | 8 |
| KEUFFEL AND ESSER SLIDE RULE K&E MODEL # 4161- | $37.99 | 15-Mar-2008 | 9 |
| Vintage K&E Slide Rule | $37.00 | 19-Mar-2008 | 7 |
| "NICE HUGE K&E SLIDE RULE 4053-5 20"" & CASE" | $36.98 | 10-Mar-2008 | 5 |
| KEUFFEL ESSER SLIDE RULE DECI-LON 68 1100 WITH | $36.77 | 25-Mar-2008 | 13 |
| VINTAGE K & E SLIDE RULE 4181-1 LEATHER CASE K | $36.35 | 03-Mar-2008 | 8 |
| SLIDE RULE KEUFFEL ESSER N4081-3 LL TRIG DUPLE | $34.50 | 23-Mar-2008 | 1 |
| Keuffel & Esser 4088-3 Slide Rule + Mag. Curso | $32.89 | 02-Mar-2008 | 7 |
| "K&E SLIDE RULE 12""" | $32.02 | 05-Mar-2008 | 9 |
| K&E Slide Rules - HARDCOVER BOOK - Deci-Lon - | $31.00 | 13-Mar-2008 | 10 |
| OLD ENG. TOOLS:KEUFFEL& ESSER SLIDE RULE W/Lea | $31.00 | 27-Mar-2008 | 10 |
| VINTAGE KEUFFEL ESSER CO lVORY SLIDE RULER 192 | $31.00 | 19-Mar-2008 | 4 |
| Vintage 1940's K&E Keuffel & Esser 4181-1 SLID | $30.99 | 30-Mar-2008 | 6 |
| "K&E Keufel & Esser 4080-3 Slide Rule w/box, c | $30.72 | 22-Mar-2008 | 4 |
| SLIDE RULE KEUFFEL & ESSER CO. | $30.00 | 21-Mar-2008 | 17 |
| MIB K & E CURSOR for POCKET DECILON SLIDE RULE | $29.99 | 08-Mar-2008 | 1 |
| VINTAGE DRAFTING TOOL LOT K & E SLIDE RULE ECT | $29.91 | 25-Mar-2008 | 4 |
| SMALL K.E. KEUFFEL & ESSER SLIDE RULE | $29.51 | 24-Mar-2008 | 8 |
| K&E Slide Rule w/case - Near Mint - Copyrighte | $29.00 | 28-Mar-2008 | 7 |
| Vintage Keuffel & Esser Slide Rule and Case 40 | $28.00 | 05-Mar-2008 | 8 |
| Vintage Keuffel & Esser K&E Slide Rule #681 16 | $27.99 | 01-Mar-2008 | 7 |
| K&E GP12 Slide Rule and Case | $27.98 | 09-Mar-2008 | 5 |
| Keuffel & Esser (K&E) Slide rule W/ Leather ca | $27.98 | 09-Mar-2008 | 9 |
| Keuffel&Esser Slide Rule 4081-3 w/case Mint Co | $27.46 | 16-Mar-2008 | 5 |
| "K&E slide rule with case, has magnifier, 4080 | $27.00 | 02-Mar-2008 | 7 |
| K&E Keuffel Esser Book Catalog 1936 Slide Rule | $26.68 | 07-Mar-2008 | 4 |
| Vintage SLIDE RULE *K & E* *68 1210* with Leat | $26.67 | 13-Mar-2008 | 8 |
| VINTAGE K & E KEUFFEL & ESSER SLIDE RULE NO 68 | $26.56 | 13-Mar-2008 | 13 |
| Slide rule * K&E * 68 1210 * W/ Case + Box * V | $26.56 | 14-Mar-2008 | 6 |
| "WOOD""KEUFFEL & ESSER SLIDE RULE W/LEATHER CA | $26.01 | 03-Mar-2008 | 3 |
| KEUFFEL & ESSER SLIDE RULE 4161-3 RULER W/ BOX | $26.00 | 17-Mar-2008 | 7 |
| ORIGINL186p 1962 K&E DECILON SLIDE RULE HARD C | $26.00 | 10-Mar-2008 | 5 |
| Vintage K&E slide rule w/ magnif. instruc. lea | $26.00 | 13-Mar-2008 | 4 |
| K & E Slide Rule & Case 4092-3 Keuffel & Esser | $25.56 | 13-Mar-2008 | 5 |
| VINTAGE K & E SLIDE RULE N4081-3 W/BROWN LEATH | $25.50 | 31-Mar-2008 | 6 |
| Vintage KEUFFEL & ESSER CO. NY. SLIDE RULE 408 | $25.00 | 02-Mar-2008 | 1 |
| 1947 K & E Slide Rule & Case 4083-3 Keuffel & | $24.99 | 19-Mar-2008 | 1 |
| MIB CURSOR fo BIG K&E DUPLEX DECILON SLIDE RUL | $24.99 | 09-Mar-2008 | 1 |
| K&E 68-1251 Slide Rule and Case | $24.75 | 16-Mar-2008 | 6 |
| Keuffel & Esser Pocket Slide Rule w/Booklet & | $24.50 | 12-Mar-2008 | 8 |
| NEAR MINT VINTAGE KEUFFEL & ESSER SLIDE RULE W | $24.39 | 09-Mar-2008 | 7 |
| Vintage Keuffel & Esser 4092-3 Slide Rule w Ca | $24.25 | 23-Mar-2008 | 5 |
| Keuffel & Esser 4081-3 Vintage slide rule Leat | $23.60 | 09-Mar-2008 | 5 |
| Kueffel & Esser Slide Rule N4053-2 Pat. 1900 | $23.50 | 12-Mar-2008 | 3 |
| VINTAGE K&E KEUFFEL & ESSER SLIDE RULE w/ Case | $23.50 | 23-Mar-2008 | 7 |
| 1947 K * E KEUFFEL AND ESSER CO. SLIDE RULE EM | $23.36 | 02-Mar-2008 | 9 |
| Keuffel & Esser K&E SLIDE RULE No. 4058-3 with | $23.27 | 02-Mar-2008 | 5 |
| "Keuffel & Esser K&E 4083-3 vector slide rule, | $23.00 | 29-Mar-2008 | 12 |
| K&E No. 4053-5 Slide Rule/Case-20in Model | $22.82 | 23-Mar-2008 | 4 |
| Keuffel & Esser slide rule with case | $22.72 | 30-Mar-2008 | 5 |
| Keuffel&Esser Co N Y Mannheim Antique Slide Ru | $22.49 | 24-Mar-2008 | 5 |
| "Keuffel & Esser N4081-3S Slide Rule, Case, Bo | $22.48 | 30-Mar-2008 | 4 |
| K & E SLIDE RULE WITH U. S. LEATHER CASE | $22.48 | 11-Mar-2008 | 2 |
| SCARCE 1943 K & E Catalogue + Assorted Slide R | $22.48 | 02-Mar-2008 | 4 |
| Keufflel & Esser Co. NY Slide Rule with magnif | $22.27 | 23-Mar-2008 | 2 |
| Vintage Keuffel & Esser Slide Ruler Leather Ca | $22.06 | 31-Mar-2008 | 6 |
| K&E SLIDE RULE | $21.50 | 05-Mar-2008 | 3 |
| Vintage 1940's Keuffel Esser Log Duplex trig s | $21.50 | 11-Mar-2008 | 2 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE 4080-3 WITH | $21.50 | 21-Mar-2008 | 2 |
| K & E Slide Rule & Case 4181-3 Keuffel & Esser | $21.06 | 13-Mar-2008 | 6 |
| Slide rules * K&E * 4181-3 * With Case * Very | $21.06 | 05-Mar-2008 | 5 |
| "Slide Rule, N7053-3, Keuffel & Esser Co. N.Y. | $20.54 | 21-Mar-2008 | 6 |
| KEUFFEL AND ESSER SLIDE RULE K&E MODEL # 68 16 | $20.50 | 08-Mar-2008 | 2 |
| MANNHEIM SLIDE RULE Keuffel & Esser Co Manual | $20.50 | 12-Mar-2008 | 16 |
| COLLECTION OF 6 SLIDE RULE: K&E ACCUMATH PICKE | $20.50 | 22-Mar-2008 | 6 |
| "KEUFFEL & ESSER K&E 68 1210 DECITRIG SLIDE RU | $20.50 | 11-Mar-2008 | 7 |
| Slide Rule K & E w/ book/box/Case Keuffel Esse | $20.50 | 29-Mar-2008 | 2 |
| Keuffel & Esser Slide Rule 4161-1 | $20.50 | 05-Mar-2008 | 3 |
| Slide Rule Keuffel & Esser (K&E) w/ Orig. Leat | $20.50 | 02-Mar-2008 | 6 |
| K & E '1040's or '50's N4053-5 Slide Rule W/Ca | $20.49 | 25-Mar-2008 | 4 |
| "Antique Slide Rule Keuffel & Esser Co. Pat. J | $20.49 | 23-Mar-2008 | 6 |
| KEUFFEL & ESSER LOG LOG DUPLEX DECITRIG SLIDE | $20.49 | 31-Mar-2008 | 11 |
| Keuffel & Esser 4081-3 Duplex Slide Rule w/ Ca | $20.00 | 13-Mar-2008 | 12 |
| K & E Slide Rule 4081-3 w/Case & Manual S/N 08 | $20.00 | 30-Mar-2008 | 1 |
| "Vintage Keuffel & Esser 4081-3 Slide Rule, ca | $19.99 | 15-Mar-2008 | 1 |
| Vintage K&E Keuffel & Esser 4081-3 Slide Rule | $19.99 | 20-Mar-2008 | 1 |
| keuffel & esser antique duplex slide rule w/ b | $19.99 | 24-Mar-2008 | 1 |
| VINTAGE DIETZGEN DRAFTING TOOLS & K&E SLIDE RU | $19.99 | 25-Mar-2008 | 1 |
| K+E Slide Rules Self Instruction Manual Duplex | $19.27 | 01-Mar-2008 | 9 |
| Vintage 1947 Keuffel & Esser Co. Slide Rule w/ | $19.00 | 30-Mar-2008 | 6 |
| Vintage K & E Slide Rule Original Box & Manual | $19.00 | 24-Mar-2008 | 4 |
| Keuffel & Esser 4071-3 Slide Rule W/ Hard Leat | $19.00 | 22-Mar-2008 | 3 |
| Vintage Keuffel & Esser Slide Rule 4181-3 with | $18.71 | 24-Mar-2008 | 6 |
| MIB CURSOR fo BIG K&E DUPLEX DECILON SLIDE RUL | $18.50 | 02-Mar-2008 | 4 |
| Vintage 1947 K&E Keuffel & Esser Co. Slide Rul | $18.50 | 29-Mar-2008 | 5 |
| "VINTAGE KEUFFEL & ESSER SLIDE RULE W/ LEATHER | $18.27 | 16-Mar-2008 | 3 |
| NICE KEUFFEL & ESSER CO. NO. 4081-3 SLIDE RULE | $18.27 | 29-Mar-2008 | 5 |
| "Keuffel & Esser Slide Rule W/Leather Case,... | $18.27 | 05-Mar-2008 | 9 |
| Antq Vtg 1937 Keuffel & Esser Cooke Radio Slid | $18.27 | 23-Mar-2008 | 3 |
| "Vintage Slide Rules of 2 Keuffel, Hughes Owen | $18.27 | 23-Mar-2008 | 5 |
| 1939 Keuffel & Esser Slide Rule 4081-3 w/ Manu | $18.26 | 26-Mar-2008 | 3 |
| Keuffel & Esser 4088-3 slide rule/case late 19 | $17.50 | 30-Mar-2008 | 6 |
| K & E Slide Rule in Leather Case | $17.49 | 11-Mar-2008 | 8 |
| OLD KEUFFEL & ESSER NO. 4054 SLIDE RULE & ORIG | $17.00 | 17-Mar-2008 | 5 |
| "VINTAGE K&E Keuffel Esser 12.5"" Slide Rule w | $16.78 | 23-Mar-2008 | 4 |
| KEUFFEL AND ESSER SLIDE RULE K&E MODEL # 4081- | $16.76 | 22-Mar-2008 | 4 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE #4092-3 WIT | $16.61 | 14-Mar-2008 | 2 |
| VINTAGE KEUFFEL ESSER SLIDE RULE AND HEMMI BAM | $16.50 | 22-Mar-2008 | 4 |
| KEUFFEL AND ESSER SLIDE RULE K&E MODEL # 4161- | $16.50 | 22-Mar-2008 | 3 |
| Vintage Pocket Slide Rule By Keuffel & Esser C | $16.49 | 12-Mar-2008 | 9 |
| Vintage Keuffel & Esser Slide Rule & Case 4081 | $16.27 | 29-Mar-2008 | 3 |
| "022398 Keuffel & Esser K&E slide rule 12"" w/ | $16.27 | 25-Mar-2008 | 2 |
| Antique Keuffel & Esser Co. Ivorite Slide Rule | $16.06 | 21-Mar-2008 | 4 |
| K & E Slide Rule Manual for # 4081 Log Log Du | $16.05 | 23-Mar-2008 | 2 |
| Early K&E 4081-3 Slide Rule W/Box | $15.76 | 20-Mar-2008 | 2 |
| "K & E LOG LOG DUPLEX TRIG SLIDE RULE, CASE & | $15.75 | 23-Mar-2008 | 4 |
| Keuffel & Esser N4041 Slide Rule and Case | $15.50 | 09-Mar-2008 | 3 |
| 1947 KEUFFEL& ESSER CO. SLIDE RULE With EXTRAS | $15.50 | 15-Mar-2008 | 3 |
| VINTAGE KUEFFEL & ESSER WOOD SLIDE RULE & CASE | $15.50 | 23-Mar-2008 | 4 |
| Slide Rule Manual - K&E Log Log Duplex Decitri | $15.50 | 01-Mar-2008 | 4 |
| Slide Rule Manual - K&E Log Log Duplex Decitri | $15.50 | 01-Mar-2008 | 3 |
| KEUFFEL & ESSER CO. K&E SLIDE RULE 1964 NO.681 | $15.50 | 08-Mar-2008 | 4 |
| K&E 4181-3 SLIDE RULE | $15.50 | 02-Mar-2008 | 2 |
| 5 vintage slide rules K&E Dietzgen Lawrence No | $15.50 | 29-Mar-2008 | 5 |
| K&E 4083-3 slide rule + case + POST 1444k Slid | $15.49 | 22-Mar-2008 | 6 |
| 1962 K&E SLIDE RULES KEUFFEL ESSER INSTRUCTION | $15.49 | 11-Mar-2008 | 5 |
| Vintage Keuffel & Esser Slide Rule ... 4053-3 | $15.06 | 12-Mar-2008 | 4 |
| "K&E Slide Rule, 4092" | $14.99 | 09-Mar-2008 | 1 |
| antique KEUFFEL & ESSER SLIDE RULE wood ruler | $14.99 | 02-Mar-2008 | 1 |
| Vintage Keuffel & Esser Slide Rule 4088-3 | $14.99 | 24-Mar-2008 | 1 |
| Vintage Polyphase Slide Rule w Case Keuffel Es | $14.99 | 05-Mar-2008 | 1 |
| Keuffel & Esser Slide Rule & Case Vintage | $14.50 | 15-Mar-2008 | 3 |
| "1947 K&E slide rule, pouch, and operation boo | $14.50 | 30-Mar-2008 | 2 |
| 1908 Keuffel and Esser Slide Rule + 2 Triangle | $14.35 | 29-Mar-2008 | 2 |
| KEUFFEL & ESSER CO. SMALL SLIDE RULE & CASE | $13.50 | 21-Mar-2008 | 6 |
| Keuffel & Esser 4088-2 Slide Rule + Case- Olde | $13.50 | 09-Mar-2008 | 2 |
| Vintage Keuffel & Esser Slide Rule dated 1947 | $13.49 | 10-Mar-2008 | 5 |
| KEUFFEL & ESSER POCKET SLIDE RULE WITH CASE DA | $13.49 | 22-Mar-2008 | 2 |
| ANTIQUE SLIDE RULE KEUFFEL&ESSER CO.#4035-PATJ | $13.10 | 23-Mar-2008 | 3 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE W/ LEATHER | $13.01 | 09-Mar-2008 | 3 |
| Early K&E 4053 Slide Rule w/Metal Indicator & | $12.99 | 06-Mar-2008 | 1 |
| K&E Log Log Duplex Decitrig 4081 Slide Rule Ma | $12.95 | 09-Mar-2008 | 1 |
| K & E Slide Rule & Case 4092-3 Keuffel & Esser | $12.63 | 27-Mar-2008 | 2 |
| "KEUFFEL & ESSER CO. # 4053-3 SLIDE RULE, POLY | $12.50 | 27-Mar-2008 | 3 |
| ORIGINAL 83 page 1954 K&E POLYPHASE SLIDE RULE | $12.48 | 06-Mar-2008 | 2 |
| ORIGINAL126p 1955 K&E DUPLEX DECITRIG SLIDE RU | $12.48 | 06-Mar-2008 | 2 |
| VINTAGE K & E SLIDE RULE N4081-3 W/LEATHER CAS | $12.10 | 04-Mar-2008 | 3 |
| "12 1/2"" 1947 Vintage Keuffel & Esser Slide R | $11.99 | 22-Mar-2008 | 1 |
| Vintage Keuffel & Esser Co. Slide Rule w/Holde | $11.89 | 29-Mar-2008 | 3 |
| vintage K&E Keuffel & Esser SLIDE RULE Model 4 | $11.80 | 02-Mar-2008 | 3 |
| VINTAGE K & E KEUFFEL & ESSER CO SLIDE RULE NI | $11.60 | 28-Mar-2008 | 3 |
| Vintage KEUFFEL & ESSER Slide Rule+Leather Cas | $11.50 | 16-Mar-2008 | 3 |
| Slide Rule - Keuffel & Esser Co. | $11.50 | 15-Mar-2008 | 4 |
| K & E 4088-3 Slide Rule Keuffel & Esser 1908 | $11.50 | 25-Mar-2008 | 3 |
| Slide rule from 1947 KEUFFEL & ESSER 599447 | $11.50 | 14-Mar-2008 | 2 |
| Keuffel & Esser Slide Rule with Case & Lawrenc | $11.40 | 30-Mar-2008 | 2 |
| Three Keuffel & Esser Slide Rule Manuals | $11.39 | 11-Mar-2008 | 3 |
| Keuffel & Esser Co. slide rule with case NO RE | $11.35 | 13-Mar-2008 | 2 |
| VINTAGE KEUFFEL & ESSER CO. POLYPHASE SLIDE RU | $11.11 | 20-Mar-2008 | 4 |
| "Vintage K&E Sliderule Original Leather Case S | $11.06 | 06-Mar-2008 | 3 |
| K&E - Keuffel & Esser - K & E LOG TRIG Slide R | $11.05 | 23-Mar-2008 | 6 |
| KEUFFEL & ESSER CO. N 4041 Slide Rule | $10.50 | 25-Mar-2008 | 3 |
| Keuffell & Esser 4083-3 Slide Rule with case | $10.50 | 23-Mar-2008 | 4 |
| Keuffel & Esser Slide Rule #4081-3 | $10.50 | 02-Mar-2008 | 2 |
| keuffel & Esser K + E Vintage Slide Rule &Leat | $10.50 | 12-Mar-2008 | 2 |
| K & E SLIDE RULE 4081-3 VINTAGE NICE | $10.49 | 02-Mar-2008 | 2 |
| K&E KE GP12 slide rule calculator &case Keuffe | $10.49 | 15-Mar-2008 | 3 |
| Vintage K&E Polyphase Duplex Decitrig Slide Ru | $10.49 | 17-Mar-2008 | 2 |
| "Vintage Keuffel & Esser Co. K.S. Slide Rule 1 | $10.49 | 23-Mar-2008 | 2 |
| ORIGINAL 37pp 1956 K&E DUPLEX VECTOR SLIDE RUL | $10.49 | 06-Mar-2008 | 2 |
| Vintage K&E Slide Rule 4088-3 KEUFFEL & ESSER | $10.49 | 22-Mar-2008 | 2 |
| Early K&E 4053-3 Slide Rule W/Case | $10.49 | 20-Mar-2008 | 2 |
| Vintage Slide Rule / Keuffel & Esser / Nice | $10.49 | 07-Mar-2008 | 2 |
| "Old Keuffel & Esser Slide Rule June 5, 1900" | $10.05 | 01-Mar-2008 | 10 |
| F Post 1447S Slide Rule Keuffel & Esser 4090-3 | $10.01 | 09-Mar-2008 | 6 |
| K&E Slide Rule | $10.00 | 06-Mar-2008 | 1 |
| 1922 K & E Mannheim Slide Rule Teaching Manual | $10.00 | 10-Mar-2008 | 1 |
| OLD ENGINEERING TOOLS: VINTAGE K & E SLIDE RUL | $9.99 | 20-Mar-2008 | 1 |
| VINTAGE K&E POCKET RULE RULER DRAFTING ENGINEE | $9.99 | 25-Mar-2008 | 1 |
| Slide Rule Manual - K&E Log Log Duplex Trig - | $9.99 | 01-Mar-2008 | 1 |
| 1908 SLIDE RULE KEUFFEL & ESSER 4088-3 K&E CAS | $9.99 | 23-Mar-2008 | 1 |
| KEUFFEL & ESSER K & E SLIDE RULE 4081-3 DUPLEX | $9.99 | 09-Mar-2008 | 1 |
| VINTAGE SLIDE RULE KEUFFEL & ESSER CO. N.Y. | $9.99 | 30-Mar-2008 | 1 |
| K & E Keuffel Esser Drafting tools slide rule | $9.99 | 14-Mar-2008 | 1 |
| K&E 4097 C POCKET SLIDE RULE W/CASE KEUFFEL & | $9.99 | 23-Mar-2008 | 1 |
| MIB K & E CURSOR for POCKET DECILON SLIDE RULE | $9.99 | 02-Mar-2008 | 1 |
| Keuffel & Esser Booklet on The Mannheim Slide | $9.99 | 04-Mar-2008 | 1 |
| Vintage K&E Kuefel and Esser Slide Rule #4053- | $9.99 | 01-Mar-2008 | 1 |
| 1908 KEUFFEL & ESSER Slide Rule w/Case #4088 P | $9.99 | 17-Mar-2008 | 1 |
| KEUFFEL & ESSER K&E SLIDE RULE | $9.99 | 24-Mar-2008 | 1 |
| K&E Slide Rule with Leather Case-vintage | $9.99 | 10-Mar-2008 | 1 |
| * Slide rules * K&E 4054 * With Case * Very Ni | $9.99 | 05-Mar-2008 | 1 |
| KEUFFEL AND ESSER SLIDE RULE K&E MODEL # 4161- | $9.99 | 29-Mar-2008 | 1 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE + MANUAL AN | $9.99 | 23-Mar-2008 | 1 |
| COLLECTION OF 6 SLIDE RULE: K&E ACCUMATH PICKE | $9.99 | 20-Mar-2008 | 1 |
| Vintage K & E Doric Lettering Set #8915 not Sl | $9.95 | 08-Mar-2008 | 1 |
| Vintage K & E Doric Slide Rule & Leather Case | $9.95 | 31-Mar-2008 | 1 |
| "K & E N4058W Beginners Slide Rule with Case, | $9.00 | 04-Mar-2008 | 1 |
| VINTAGE1947 KEUFFLER & ESSER SLIDE RULE LEATHE | $8.99 | 07-Mar-2008 | 1 |
| Slide Rule K+E 4081-3 | $8.50 | 06-Mar-2008 | 3 |
| VINTAGE SLIDE RULE KEUFFEL & ESSER w LEATHER C | $7.99 | 21-Mar-2008 | 1 |
| Vintage K&E Slide rule No. 4081-3 & Case | $7.95 | 10-Mar-2008 | 1 |
| Keuffel & Esser Co. Slide Rule #4097 W/ leathe | $7.85 | 02-Mar-2008 | 1 |
| "KEUFFEL & ESSER CO. # 4053-3 SLIDE RULE , POL | $7.75 | 16-Mar-2008 | 2 |
| 1945 K&E KEUFFEL & ESSER 4081 SLIDE RULE MANUA | $7.50 | 12-Mar-2008 | 6 |
| KEUFFEL & ESSER 4081-3 SLIDE RULE VERY GOOD CO | $7.50 | 16-Mar-2008 | 6 |
| Slide Rule K&E Favorite #4055 10 Inch | $7.50 | 18-Mar-2008 | 1 |
| K&E KEUFFEL & ESSER 4031 Slide Rule with Case | $7.28 | 10-Mar-2008 | 4 |
| Vintage Slide Rule w Case Keuffel Esser K&E 40 | $7.20 | 09-Mar-2008 | 6 |
| slide rule indicator glass K&E 7L 7W box Keuff | $7.00 | 25-Mar-2008 | 6 |
| Slide Rule Manual - K&E Log Log Duplex Decitri | $7.00 | 07-Mar-2008 | 1 |
| KEUFFEL & ESSER 4097 C SLIDE RULE VERY GOOD CO | $7.00 | 09-Mar-2008 | 1 |
| "207886 Keuffel & Esser K&E slide rule 12"" w/ | $6.99 | 24-Mar-2008 | 2 |
| 1939 KEUFFEL & ESSER LOG LOG DUPLEX SLIDE RULE | $6.99 | 17-Mar-2008 | 1 |
| Vintage Keuffel & Esser Slide Rule dated 1924 | $6.95 | 10-Mar-2008 | 1 |
| Vintage 1945 Keuffel & Esser Slide Rule Manual | $6.95 | 10-Mar-2008 | 1 |
| Keuffel & Esser Log Log Slide Rule 4083 Duplex | $6.90 | 19-Mar-2008 | 1 |
| Keuffel & Esser polyphase slide rule pat 1908 | $6.61 | 13-Mar-2008 | 5 |
| Keuffel & Esser Co. NY. No. 4094 Slide Rule | $6.50 | 31-Mar-2008 | 1 |
| Vintage K & E Keuffel & Esser Slide Ruler Rule | $6.50 | 02-Mar-2008 | 4 |
| Vintage K&E Beginner's Slide Rule N4058W w Cas | $6.50 | 09-Mar-2008 | 2 |
| Vintage K&E Favorite Slide Rule 4056 with Case | $6.10 | 26-Mar-2008 | 3 |
| KEUFFEL & ESSER SLIDE RULE WITH CASE | $6.00 | 12-Mar-2008 | 1 |
| "EARLY K & E 4053-3 Slide Rule with Case 10-5/ | $6.00 | 25-Mar-2008 | 1 |
| 1947 Keuffler & Essex Slide Rule N4081-3 With | $5.99 | 19-Mar-2008 | 2 |
| L4542 Vintage K&E Beginner's Slide Rule N4058W | $5.95 | 28-Mar-2008 | 1 |
| Vintage K & E 4058W Beginner's Slide Rule Keuf | $5.50 | 02-Mar-2008 | 6 |
| 1900 KEUFFEL & ESSER WOOD SLIDE RULE IN ORIGIN | $5.00 | 10-Mar-2008 | 1 |
| Keuffel & Esser Co. Slide rule | $5.00 | 03-Mar-2008 | 1 |
| KEUFFEL & ESSER SLIDE RULE 4080-3 WITH ORIGINA | $5.00 | 28-Mar-2008 | 4 |
| KEUFFEL & ESSER CO SLIDE RULE MANUAL-1947 | $5.00 | 31-Mar-2008 | 2 |
| 1947 Keuffel & Esser Co. Slide Rule Manual No. | $5.00 | 06-Mar-2008 | 1 |
| K + E SLIDE RULE MANUAL POLYPHASE NO. 4053 | $5.00 | 14-Mar-2008 | 1 |
| Slide Rule Box ONLY for K&E 68 1622-Polyphase | $5.00 | 12-Mar-2008 | 1 |
| Keuffel & Esser Vintage Slide Rule w/leather c | $5.00 | 27-Mar-2008 | 2 |
| Nice Vintage K & E Slide Ruler - Leather Case | $4.99 | 03-Mar-2008 | 1 |
| "LOT OF 3 SLIDE RULES(MICOLINE 120,121,KEUFFEL | $4.99 | 16-Mar-2008 | 1 |
| "KEUFFEL & ESSER CO., NEW YORK SLIDE RULE #405 | $4.99 | 01-Mar-2008 | 1 |
| KEUFFEL & ESSER Slide Rule VINTAGE | $4.99 | 16-Mar-2008 | 1 |
| K & E Slide Rule 4058 and Engineering Instr Sl | $4.99 | 02-Mar-2008 | 1 |
| K&E N4058W Beginners slide rule | $4.99 | 08-Mar-2008 | 1 |
| 1947 N4081-3 KEUFFEL & ESSER SLIDE RULE W/LEAT | $4.99 | 31-Mar-2008 | 3 |
| Vintage Keuffel & Esser 1939 1940 Slide Rule 4 | $4.75 | 22-Mar-2008 | 2 |
| VINTAGE K & E SLIDE RULE 4058 KEUFFEL & ESSER | $4.00 | 21-Mar-2008 | 1 |
| VINTAGE LAWRENCE ENGINEERING AND K&E SLIDE RUL | $3.99 | 20-Mar-2008 | 1 |
| Vintage 1947 Keuffel & Esser Slide Rule Manual | $3.95 | 10-Mar-2008 | 1 |
| KEUFFEL & ESSER VINTAGE\SLIDE RULER 4081-3 W\c | $3.25 | 11-Mar-2008 | 2 |
| VINTAGE K&E KEUFFEL ESSER 4088-3 SLIDE RULE W/ | $3.00 | 16-Mar-2008 | 1 |
| K+E booklets & adv piece drafting mach slide r | $2.99 | 27-Mar-2008 | 1 |
| VINTAGE K & E N4058W BEGINNER'S SLIDE RULE WIT | $2.75 | 31-Mar-2008 | 2 |
| KEUFFEL & ESSER SLIDE RULE N4053-3 WITH ORIGIN | $2.75 | 28-Mar-2008 | 4 |
| Keuffel & Esser (K$E) 4053-3 slide rule in a c | $1.26 | 31-Mar-2008 | 2 |
| K&E SLIDE RULE 4053-3 CASE 1935 KEUFFEL & ESSE | $1.04 | 31-Mar-2008 | 2 |
| K & E VINTAGE 1900 MANNHEIM SLIDE RULE IOB | $0.99 | 12-Mar-2008 | 1 |
| K&E Mannheim Slide Rule - 4041 - Sold As Is - | $0.99 | 12-Mar-2008 | 1 |
| VINTAGE K & E N4058W BEGINNER'S SLIDE RULE WIT | $0.99 | 25-Mar-2008 | 1 |
| 1939 QUICK & EASY LAWRENCE SLIDE RULE INSTRUCT | $0.99 | 17-Mar-2008 | 1 |
| Vintage Keuffell&Esser Beginners Slide Rule#40 | $0.99 | 12-Mar-2008 | 1 |
| Keuffel + Esser DECI-LON SLIDE RULE leather ca | $199.99 | 16-Mar-2008 | 0 |
| K&E - Keuffel & Esser - K & E LOG TRIG Slide R | $175.00 | 09-Mar-2008 | 0 |
| VINTAGE KEUFFEL & ESSER CO. K E SLIDE RULERS a | $125.00 | 27-Mar-2008 | 0 |
| Doric K&E slide ruler Apollo Gemini NASA engin | $99.00 | 24-Mar-2008 | 0 |
| Doric K&E slide ruler Apollo Gemini NASA engin | $99.00 | 07-Mar-2008 | 0 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $95.00 | 14-Mar-2008 | 0 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $93.25 | 07-Mar-2008 | 0 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $86.68 | 19-Mar-2008 | 0 |
| Rare 3 Pack of Antique K&E Engineering Slide R | $50.00 | 09-Mar-2008 | 0 |
| Vintage K&E Slide Rule 4181-3 w/case & Manual | $49.95 | 21-Mar-2008 | 0 |
| Vintage K&E Slide Rule 4181-3 w/case & Manual | $49.95 | 23-Mar-2008 | 0 |
| KEUFFEL & ESSER CO. SLIDE RULE | $35.00 | 31-Mar-2008 | 0 |
| "NICE HUGE K&E SLIDE RULE 4053-5 20"" & CASE" | $29.99 | 06-Mar-2008 | 0 |
| Keuffel & Esser K&E Vintage LOG LOG DUPLEX Sli | $24.99 | 15-Mar-2008 | 0 |
| Keuffel & Esser K&E Vintage LOG LOG DUPLEX Sli | $24.99 | 24-Mar-2008 | 0 |
| "NICE HUGE K&E SLIDE RULE 4053-5 20"" & CASE" | $24.99 | 15-Mar-2008 | 0 |
| K&E KEUFFEL & ESSER 4031 Slide Rule with Case | $20.00 | 20-Mar-2008 | 0 |
| Vintage Slide Rule Keuffel & Esser Leather Cas | $19.99 | 14-Mar-2008 | 0 |
| K&E Keuffel & Esser SLIDE RULE w original case | $19.99 | 09-Mar-2008 | 0 |
| K&E Slide Rules HARDCOVER BOOK Log Duplex Deci | $19.99 | 21-Mar-2008 | 0 |
| EARLY K&E KEUFFEL & ESSER SLIDE RULE PAT. '00 | $19.99 | 17-Mar-2008 | 0 |
| VINTAGE 1947 KEUFFEL & ESSER SLIDE RULE & CASE | $19.99 | 07-Mar-2008 | 0 |
| VINTAGE K & E KEUFFEL & ESSER CO SLIDE RULE NI | $19.99 | 18-Mar-2008 | 0 |
| "Vintage K&E Slides Rules Draft,Mach W/Box 323 | $19.99 | 26-Mar-2008 | 0 |
| Mannheim Slide Rule - K&E 4053-3 with BOOK - L | $19.99 | 11-Mar-2008 | 0 |
| Vintage Keuffel & Esser Slide Ruler with leath | $19.99 | 12-Mar-2008 | 0 |
| Mannheim Slide Rule - K&E 4053-3 with BOOK - L | $19.99 | 18-Mar-2008 | 0 |
| Keuffel & Esser mannheim antique Slide Rule w/ | $19.99 | 21-Mar-2008 | 0 |
| Keuffel & Esser Slide Rule Leather case Instru | $19.99 | 25-Mar-2008 | 0 |
| ORIGINL186p 1962 K&E DECILON SLIDE RULE HARD C | $19.99 | 26-Mar-2008 | 0 |
| K&E SLIDE RULE KEUFFEL & ESSER CO. 1964 NO.681 | $19.95 | 02-Mar-2008 | 0 |
| Lot of 3 Vintage Slide Rules DIETZGEN KEUFFEL/ | $19.95 | 30-Mar-2008 | 0 |
| "EARLY K & E 4053-3 Slide Rule with Case 10-5/ | $19.00 | 04-Mar-2008 | 0 |
| ANTIQUE KEUFFEL & ESSER 4053-3 POLYPHASE SLIDE | $14.99 | 20-Mar-2008 | 0 |
| K&E POCKET DECILON 68 1130 MIP SLIDE RULE CURS | $14.99 | 12-Mar-2008 | 0 |
| Vintage Slide Rule Log Log Duplex Trig Keuffel | $14.99 | 15-Mar-2008 | 0 |
| Keufflel & Esser Co. NY Slide Rule with magnif | $13.95 | 21-Mar-2008 | 0 |
| "K&E 12"" DECILON 68 1100 MIP SLIDE RULE INDIC | $12.99 | 12-Mar-2008 | 0 |
| Antique 1928 Manheim Type SLIDE RULE by Keuffe | $12.99 | 09-Mar-2008 | 0 |
| KAUFFEL & ESSER Wooden Beginner's Slide Rule M | $12.99 | 09-Mar-2008 | 0 |
| K&E Log Log Duplex Decitrig 4081 Slide Rule Ma | $12.95 | 06-Mar-2008 | 0 |
| VINTAGE KEUFFEL & ESSER COMPANY SLIDE RULE 405 | $12.50 | 15-Mar-2008 | 0 |
| K&E POCKET DECILON 68 1130 MIP SLIDE RULE CURS | $11.99 | 06-Mar-2008 | 0 |
| Vintage K&E Keuffel Esser Slide Rule w/Case 40 | $9.99 | 18-Mar-2008 | 0 |
| Keuffel & Esser~1939 Manual~SLIDE RULES BOOKLE | $9.99 | 19-Mar-2008 | 0 |
| 2 Keuffel & Esser Slide Rule Instruction Books | $9.99 | 16-Mar-2008 | 0 |
| "Antique Slide Rule Keuffel & Esser Co. Pat. J | $9.99 | 09-Mar-2008 | 0 |
| KEUFFEL & ESSER CO NY SLIDE RULE <4088-3> | $9.99 | 12-Mar-2008 | 0 |
| OLD ENG. TOOLS:KEUFFEL& ESSER SLIDE RULE W/Lea | $9.99 | 20-Mar-2008 | 0 |
| Vintage Keuffel & Esser slide rule with leathe | $9.99 | 25-Mar-2008 | 0 |
| Vintage Keuffel & Esser Co. NY Slide Rule Rule | $9.99 | 25-Mar-2008 | 0 |
| Vintage 1930s Keuffel Esser Slide Rule #N4041 | $9.99 | 23-Mar-2008 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $9.99 | 26-Mar-2008 | 0 |
| K&E Keuffel & Esser SLIDE RULE w original case | $9.99 | 23-Mar-2008 | 0 |
| 126p 1955 K&E JETLOG DECITRIG SLIDE RULE HARD | $9.99 | 10-Mar-2008 | 0 |
| Keuffel & Esser Slide Rule 4058W Orig Case & I | $9.99 | 25-Mar-2008 | 0 |
| OLD K E KEUFFEL & ESSER CO POLYPHASE DUPLEX SL | $9.99 | 28-Mar-2008 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $9.99 | 19-Mar-2008 | 0 |
| Slide Rule Manual - K&E Log Log Duplex Decitri | $9.99 | 01-Mar-2008 | 0 |
| Two Slide Rules: Fredrick Post & Kueffel & Ess | $9.99 | 26-Mar-2008 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $9.99 | 05-Mar-2008 | 0 |
| VINTAGE K & E SLIDE RULE MANUAL - 1939 | $9.99 | 04-Mar-2008 | 0 |
| Two Slide Rules: Fredrick Post & Kueffel & Ess | $9.99 | 19-Mar-2008 | 0 |
| Keuffel & Esser Slide Rule with Case & Lawrenc | $9.99 | 27-Mar-2008 | 0 |
| KEUFFEL & ESSER CO.BEGINNERS SLIDE RULE CONVER | $9.99 | 23-Mar-2008 | 0 |
| K&E Slide rule & Case-Give away for Holidays.. | $9.99 | 04-Mar-2008 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $9.99 | 12-Mar-2008 | 0 |
| Vintage K&E Keuffel Esser Slide Rule w/Case 40 | $9.99 | 25-Mar-2008 | 0 |
| old Keuffel & Esser Co. Professional Slide Rul | $9.99 | 21-Mar-2008 | 0 |
| 1881 KEUFFEL & ESSER NY ANTIQUE CALULATOR SLID | $9.99 | 17-Mar-2008 | 0 |
| KEUFFEL AND ESSER SLIDE RULE K&E MODEL 4081-3! | $9.99 | 09-Mar-2008 | 0 |
| VINTAGE K & E SLIDE RULE INSTRUCTION BOOK - 19 | $9.99 | 04-Mar-2008 | 0 |
| Vintage Keuffel & Essner Slide Rule in Case | $9.99 | 28-Mar-2008 | 0 |
| Vintage Keuffel & Esser slide rule with leathe | $9.99 | 30-Mar-2008 | 0 |
| Slide Rule Keuffel & Esser Co NY Beginner's Wo | $9.99 | 08-Mar-2008 | 0 |
| Vintage Keuffel & Esser Co. NY Slide Rule Rule | $9.99 | 07-Mar-2008 | 0 |
| KEUFFEL & ESSER CO. SLIDE RULE 4053-3 WITH CAS | $9.99 | 16-Mar-2008 | 0 |
| KEUFFEL & ESSER 4081 SLIDE RULE & LEATHER CASE | $9.99 | 16-Mar-2008 | 0 |
| 1939~Vintage Slide Rule Log Duplex Keuffel & E | $9.99 | 30-Mar-2008 | 0 |
| 1947 Instruction Manual K&E 9068 SLIDE RULE Do | $9.99 | 30-Mar-2008 | 0 |
| "Keuffel & Esser Co. Slide Rule w/ Leather Hol | $9.99 | 29-Mar-2008 | 0 |
| Rare K & E slide rule 4070-3 US Navy 528 EIC K | $9.99 | 29-Mar-2008 | 0 |
| Slide Rule Keuffel & Esser Beginner's 4058 W 1 | $9.99 | 30-Mar-2008 | 0 |
| Vintage Keuffel & Esser Polyphase Slide Rule N | $9.99 | 13-Mar-2008 | 0 |
| Vintage Keuffel & Essner Slide Rule in Case | $9.99 | 30-Mar-2008 | 0 |
| Vintage KEUFFEL & ESSER Beginner's Slide Rule | $9.99 | 31-Mar-2008 | 0 |
| TWO VINTAGE KEUFFEL & ESSER CO. SLIDE RULES | $9.95 | 22-Mar-2008 | 0 |
| Keuffel & Esser Slide Rule 4058W in Case Marke | $9.95 | 12-Mar-2008 | 0 |
| Keuffel and Esser Slide Rule Patent 6-5-00 | $9.95 | 22-Mar-2008 | 0 |
| Keuffel & Esser co. 4058c beginner's slide rul | $9.95 | 18-Mar-2008 | 0 |
| TWO VINTAGE KEUFFEL & ESSER CO. SLIDE RULES | $9.95 | 30-Mar-2008 | 0 |
| K&E KEUFFEL & ESSER 4058W SLIDE RULE + LAWRENC | $9.95 | 29-Mar-2008 | 0 |
| Keuffel&Esser Co Slide Rule with leather case | $9.95 | 14-Mar-2008 | 0 |
| Vintage Keuffel & Esser Company Slide Rule Lot | $9.90 | 01-Mar-2008 | 0 |
| KEUFFEL AND ESSER Co. SLIDE RULER / VENUS 10 P | $9.80 | 28-Mar-2008 | 0 |
| KEUFFEL AND ESSER Co. SLIDE RULER / VENUS 10 P | $9.80 | 11-Mar-2008 | 0 |
| KEUFFEL & ESSER BEGINNERS SLIDE RULE 4058C ORI | $9.50 | 05-Mar-2008 | 0 |
| "EARLY K & E 4053-3 Slide Rule with Case 10-5/ | $9.00 | 13-Mar-2008 | 0 |
| Vintage Keuffel & Esser Slide Rule with Sheath | $9.00 | 05-Mar-2008 | 0 |
| keuffel & Esser K + E Vinatge Slide Rule &Leat | $8.99 | 08-Mar-2008 | 0 |
| Keuffel & Esser LL Decitrig Duplex Slide Rule | $8.97 | 02-Mar-2008 | 0 |
| Original Keuffel Esser K&E N4053 Slide Rule Ma | $8.00 | 29-Mar-2008 | 0 |
| "Vintage Slide Rule Keuffel & Esser N4058W, wi | $8.00 | 08-Mar-2008 | 0 |
| Slide Rule K&E Favorite #4055 10 Inch | $7.50 | 14-Mar-2008 | 0 |
| 1939 KEUFFEL & ESSER LOG LOG DUPLEX SLIDE RULE | $6.99 | 14-Mar-2008 | 0 |
| Vintage Keuffel & Esser Slide Rule K12 Prep | $6.95 | 10-Mar-2008 | 0 |
| Vintage Keuffel and Esser Co. NY #4048 Beg. Sl | $6.00 | 25-Mar-2008 | 0 |
| 2 K & E SLIDE RULE Cases <4081-3 >LOG LOG & <4 | $6.00 | 05-Mar-2008 | 0 |
| 2 Keuffel & Esser Slide Rule Instruction Books | $5.99 | 27-Mar-2008 | 0 |
| Keuffel & Esser Co. K & E Wooden Slide Rule 40 | $5.50 | 26-Mar-2008 | 0 |
| VINTAGE K & E SLIDE RULE 4058 KEUFFEL & ESSER | $5.00 | 13-Mar-2008 | 0 |
| "Vintage K&E slide rule w/ convers. on back, v | $5.00 | 13-Mar-2008 | 0 |
| Keuffel & Esser Slide Rule No. 4053 Instructio | $5.00 | 02-Mar-2008 | 0 |
| "10-1/2"" Keuffel & Esser Co. Beginner's Slide | $5.00 | 18-Mar-2008 | 0 |
| Vintage Keuffel & Esser Beginners Slide Rule # | $5.00 | 02-Mar-2008 | 0 |
| Keuffel & Esser 4058c slide rule | $5.00 | 02-Mar-2008 | 0 |
| "10-1/2"" Keuffel & Esser Co. Beginner's Slide | $5.00 | 08-Mar-2008 | 0 |
| KEUFFEL & ESSER CO N.Y. Slide Rule | $5.00 | 25-Mar-2008 | 0 |
| Keuffel & Esser 4058c slide rule | $5.00 | 17-Mar-2008 | 0 |
| Keuffel & Esser 4058c slide rule | $5.00 | 09-Mar-2008 | 0 |
| KEUFFEL & ESSER WOOD SLIDE RULE IN ORIGINAL CA | $5.00 | 18-Mar-2008 | 0 |
| Old slide ruler with case made by K+E | $4.99 | 09-Mar-2008 | 0 |
| Vintage Keuffel & Esser Slide ruler w/ Case | $4.99 | 20-Mar-2008 | 0 |
| Antique 1928 Manheim Type SLIDE RULE by Keuffe | $4.99 | 17-Mar-2008 | 0 |
| Vintage Keuffell&Esser Beginners Slide Rule#40 | $4.99 | 04-Mar-2008 | 0 |
| Old KEUFFEL & ESSER N4058W Beginner's SLIDE RU | $4.99 | 05-Mar-2008 | 0 |
| VINTAGE KEUFFEL & ESSER K&E MODEL 4080-3 SLIDE | $4.99 | 02-Mar-2008 | 0 |
| Keuffel & Esser Co. NY Beginner's Slide RUle 4 | $4.99 | 16-Mar-2008 | 0 |
| 1939 QUICK & EASY LAWRENCE SLIDE RULE INSTRUCT | $4.75 | 08-Mar-2008 | 0 |
| Keuffel & Esser Co. Begineer's Slide Rule 4058 | $4.00 | 06-Mar-2008 | 0 |
| 1944 Keuffel & Esser slide rule instruction bo | $3.99 | 24-Mar-2008 | 0 |
| "Slide rule, Keuffel & Esser Co. N.Y. Pat. 190 | $3.25 | 16-Mar-2008 | 0 |
| SLIDE RULE - KEUFFEL & ESSER CO. | $1.99 | 09-Mar-2008 | 0 |
| Antique Keuffel & Esser 1905 Slide Rule? Draft | $0.99 | 08-Mar-2008 | 0 |
| Vintage Keuffel & Esser Slide Rule K12 Prep | $0.95 | 24-Mar-2008 | 0 |