| Keuffel and Esser |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Sep-2007 |
| KEUFFEL & ESSER Co. DUPLEX SLIDE RULE 1891 Exc | $698.92 | 08-Sep-2007 | 12 |
| K+E DECI-LON 5 Pocket Slide Rule 6801130 w/cas | $465.00 | 23-Sep-2007 | 19 |
| KURTZ Psychrometric Slide Rule K&E Co.w/Case & | $338.99 | 11-Sep-2007 | 13 |
| "KEUFFEL & ESSER SLIDE RULE LOGLOGDECITRIG NO. | $250.00 | 20-Sep-2007 | 1 |
| "K&E Keuffel & Esser 10"" Deci-Lon Slide Rule | $202.49 | 11-Sep-2007 | 26 |
| VINTAGE KEUFFEL & ESSER DECITRIG ENGINEER'S SL | $185.50 | 05-Sep-2007 | 8 |
| Keuffel Esser Deci-Lon Slide Rule 68 1100 NEW | $182.50 | 12-Sep-2007 | 15 |
| Deci-Lon 10 Slide Rule 68-1100 K E Keuffel & E | $159.50 | 23-Sep-2007 | 15 |
| K & E DECI-LON SLIDE RULE WITH LEATHER CASE VI | $157.00 | 19-Sep-2007 | 13 |
| Vintage KEUFFEL & ESSER 68-1100 SLIDE RULE Dec | $155.02 | 10-Sep-2007 | 11 |
| K+E.Keffeul & Esser Slide Rule 68-1210. NEW In | $139.50 | 02-Sep-2007 | 10 |
| K&E Deci-Lon 10 Slide Rule 68-1100 & Tan Leath | $129.50 | 10-Sep-2007 | 1 |
| K+E Classic Slide Rule 4083-3 Log Log Duplex V | $117.50 | 20-Sep-2007 | 10 |
| "K&E DECI-LON 10"" SLIDE RULE and LEATHER CASE | $113.50 | 13-Sep-2007 | 13 |
| K&E SLIDE RULE model 4081-3 MINT NR | $112.50 | 16-Sep-2007 | 12 |
| "K&E Celanese Celcon GREEN Slide Rule RARE w/C | $104.49 | 03-Sep-2007 | 8 |
| Vintage K & E Keuffel & Esser 4181-1 Slide Rul | $100.00 | 07-Sep-2007 | 1 |
| "Keuffel & Esser Slide Rule 22"" Pat. 1900 Vin | $98.00 | 23-Sep-2007 | 9 |
| LOT Drafting supplies K & E Paragon Rulers Sli | $97.99 | 09-Sep-2007 | 9 |
| K&E DECI-LON SLIDE RULE W/ LEATHER CASE--NICE- | $88.00 | 23-Sep-2007 | 11 |
| "K + E Slide Rule 4081-3 with Case, Box and Pa | $81.00 | 04-Sep-2007 | 8 |
| Vintage Slide Rule KEUFFEL ESSER N4092-5 & Lea | $77.77 | 23-Sep-2007 | 10 |
| 1947 Vintage Keuffel & Esser N4081-3 Slide Rul | $70.40 | 09-Sep-2007 | 15 |
| Vintage Keuffel Esser Deci-Lon Slide Rule 68 1 | $70.00 | 18-Sep-2007 | 13 |
| "Keuffel & Esser Slide Rule,Leather Case & Ori | $66.66 | 08-Sep-2007 | 4 |
| Keuffel & Esser Slide rule K & E model 627982 | $61.00 | 18-Sep-2007 | 13 |
| "Vintage Tools Waltax Cam,K&E Leroy Lettering, | $56.55 | 07-Sep-2007 | 9 |
| KUEFFEL & ESSER 4053-5 20 INCH SLIDE RULE LEAT | $54.54 | 21-Sep-2007 | 3 |
| "K & E Deci-lon Slide Rule, Vintage 1947,1961 | $54.00 | 13-Sep-2007 | 9 |
| VINTAGE K&E 4191-3 SLIDE RULE NEW IN BOX PAPER | $54.00 | 09-Sep-2007 | 11 |
| Lot Slide Rule Calculator Starrett K&E 4181-1 | $52.99 | 04-Sep-2007 | 13 |
| K&E MANUAL/THE MANNHEIM & DUPLEX SLIDE RULES/c | $52.00 | 09-Sep-2007 | 7 |
| K&E SLIDE RULE COPYWRIGHT 1955 COMPLETE 4081-3 | $51.00 | 22-Sep-2007 | 9 |
| "K+E Slide Rule in Leather Case PN#2,086,502 S | $50.58 | 06-Sep-2007 | 7 |
| Slide Rule Slidedisk Emil Tröger Circular Slid | $49.00 | 01-Sep-2007 | 1 |
| Vintage K & E Keuffel & Esser Slide Rule Leath | $45.00 | 06-Sep-2007 | 1 |
| rare 1905 Keuffel Esser 'Student's' Slide Rule | $45.00 | 02-Sep-2007 | 3 |
| SLIDE RULE K&E Log Log Duplex Decitrig No68 12 | $44.00 | 09-Sep-2007 | 1 |
| "Vintage Keuffel & Esser, K&E, N4053-5, 20"" S | $44.00 | 16-Sep-2007 | 11 |
| VINTAGE SLIDE RULE WITH CASE KEUFFEL & ESSER | $42.01 | 09-Sep-2007 | 14 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE 4092-3 CASE | $41.00 | 08-Sep-2007 | 5 |
| Big Slide Rule Slidedisk Emil Tröger Circular | $40.10 | 08-Sep-2007 | 2 |
| VINTAGE KEUFFEL & ESSER K&E 4092-3 SLIDE RULE | $38.00 | 21-Sep-2007 | 11 |
| 3 VINTAGE Keuffel & Esser SLIDE RULES & CASES | $37.00 | 12-Sep-2007 | 11 |
| K & E KEUFFEL ESSER SLIDE RULE 4081-3 W/CASE 1 | $37.00 | 23-Sep-2007 | 3 |
| K&E KUEFFEL & ESSER 4081-3 LOG LOG DECITRIG SL | $37.00 | 21-Sep-2007 | 10 |
| Vintage K & E Slide Rule - Log Log Duplex Deci | $37.00 | 08-Sep-2007 | 7 |
| Old K&E Keuffel Esser Slide Rule 68 1775 Merch | $36.00 | 16-Sep-2007 | 3 |
| K & E Pocket Slide Rule 4181-1 Keuffel & Esser | $36.00 | 11-Sep-2007 | 10 |
| Vintage Keuffel & Esser K&E Slide Rule N4041 | $35.00 | 15-Sep-2007 | 4 |
| Keuffel & Esser K&E Slide Rule 4181-1 | $33.00 | 08-Sep-2007 | 7 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE 4092-3 CASE | $32.00 | 23-Sep-2007 | 4 |
| K & E SLIDE RULE/ 4081-3/ WITH CASE/ TAKE A LO | $32.00 | 11-Sep-2007 | 9 |
| K & E KEUFFEL ESSER SLIDE RULE 68-1210 W/CASE | $31.99 | 15-Sep-2007 | 2 |
| Keuffel & Esser K&E Slide Rule 4181-1 clean wi | $31.00 | 02-Sep-2007 | 3 |
| Keuffel & Esser 4081-3 Slide Rule Vintage W/Gr | $31.00 | 23-Sep-2007 | 3 |
| VINTAGE 1920's SLIDE RULE KEUFFEL & ESSER CO. | $31.00 | 23-Sep-2007 | 5 |
| "Keuffel & Esser Co. 4181-1 Slide Rule, Case, | $31.00 | 10-Sep-2007 | 11 |
| K & E Slide Ruler w/Genuine Leather Case - Exc | $30.00 | 14-Sep-2007 | 1 |
| KEUFFEL AND ESSER SLIDE RULE AND LEATHER CASE | $30.00 | 21-Sep-2007 | 1 |
| KEUFFEL AND ESSER SLIDE RULE AND LEATHER CASE | $30.00 | 21-Sep-2007 | 1 |
| Vintage K&E Slide Rule N4081-3 | $29.95 | 04-Sep-2007 | 1 |
| KEUFFEL AND ESSER PAT 1900 SLIDE RULE AND CASE | $28.00 | 21-Sep-2007 | 2 |
| Large lot Drafting Templates + / K & E Slide R | $27.87 | 23-Sep-2007 | 3 |
| 1900 KEUFFEL & ESSER TERRY STEAM TURBINE CO SL | $27.00 | 15-Sep-2007 | 3 |
| Vintage K&E Keuffel & Esser Slide Rule Slideru | $27.00 | 23-Sep-2007 | 5 |
| Keuffel & Esser K&E 4181-1 slide rule with lea | $26.77 | 10-Sep-2007 | 6 |
| K+E Keuffel & Esser Co. NO. 68 1256 Slide Rule | $26.52 | 12-Sep-2007 | 2 |
| Keuffel & Esser Pocket Slide Rule 4181-C w/Cas | $26.50 | 04-Sep-2007 | 7 |
| VINTAGE KEUFFEL ESSER SMALL SLIDE RULE | $26.01 | 16-Sep-2007 | 2 |
| Vintage K & E Slide Rule - Log Log Duplex Deci | $26.01 | 05-Sep-2007 | 2 |
| Keuffel & Esser Merchant's Slide Rule 4095 + m | $26.00 | 16-Sep-2007 | 6 |
| "Keuffel & Esser (K&E) 4088-5 Slide Rule c1930 | $25.49 | 11-Sep-2007 | 5 |
| Slide Rule K & E Log Log Duplex Decitrig N4081 | $25.49 | 15-Sep-2007 | 5 |
| VINTAGE 1962 K&E SLIDE RULE BOOK INSTRUCTION M | $25.49 | 19-Sep-2007 | 4 |
| PHILIP ROGERS 1947 KEUFFEL & ESSER SLIDE RULE | $25.00 | 21-Sep-2007 | 1 |
| VINTAGE K&E KEUFFEL & ESSER POCKET SLIDE RULE | $24.99 | 02-Sep-2007 | 1 |
| Keuffel & Esser Co. K & E Slide Rule 4081-3 ~1 | $24.95 | 23-Sep-2007 | 1 |
| VINTAGE KUEFFEL ESSER POLYPHASE SLIDE RULE W/ | $24.06 | 15-Sep-2007 | 3 |
| 1947 K & E Keuffel Esser Slide Rule 4081-3 w/C | $23.00 | 16-Sep-2007 | 8 |
| Vintage K&E KEUFFEL ESSER SLIDE RULE # 4054 CA | $22.48 | 05-Sep-2007 | 3 |
| Two vintage K&E slide rules with manuals | $22.48 | 13-Sep-2007 | 3 |
| 3pcs. ~ OLD ~ SLIDE RULES ~ KEUFFEL & ESSER | $22.28 | 07-Sep-2007 | 7 |
| "TWO (2) SLIDE RULES. MADE BY ""JASON, AND K&E | $22.01 | 23-Sep-2007 | 3 |
| Keuffel & Esser Deci-Lon K+E Slide Rule + Case | $22.00 | 13-Sep-2007 | 2 |
| Keuffel & Esser 4092-3 Slide Rule with Leather | $21.75 | 08-Sep-2007 | 6 |
| 1947 Keuffel & Esser 4081-3 Slide Rule and Lea | $21.56 | 01-Sep-2007 | 2 |
| K & E SLIDE RULE W/LEATHER CASE DECITRIG BOOK | $21.50 | 10-Sep-2007 | 7 |
| K & E Slide Rule Log Log Duplex Vector 4083 -3 | $20.65 | 05-Sep-2007 | 3 |
| Keuffel & Esser Model 4081-3 Slide Rule Vintag | $20.50 | 13-Sep-2007 | 6 |
| "Slide rule, 1947 Keuffel & Esser model N4080- | $20.50 | 13-Sep-2007 | 11 |
| Keuffel & Esser K&E 4080-3 slide rule w/ box a | $20.50 | 10-Sep-2007 | 2 |
| KEUFFEL & ESSER K& E SLIDE RULE 4054 W/ CASE | $20.50 | 11-Sep-2007 | 3 |
| "OLD 20"" K&E KEUFFEL ESSER SLIDE RULE HARD LE | $20.00 | 13-Sep-2007 | 1 |
| Vintage K&E 4081-3S Slide Rule and Leather Cas | $19.99 | 17-Sep-2007 | 1 |
| "3 Vintage Keuffel & Esser , kockums malmo Sli | $19.00 | 09-Sep-2007 | 1 |
| "Antique Slide Rule Pre-!940 Keuffel & Esser C | $18.50 | 22-Sep-2007 | 1 |
| 1947 KEUFFEL ESSER IVORY SLIDE RULE & INST BOO | $18.50 | 22-Sep-2007 | 3 |
| Lot of 5 Slide Rule Post 1452T K&E Box | $18.00 | 15-Sep-2007 | 10 |
| 2 VINTAGE SLIDE RULE K E ACU MATH 600 W LEATHE | $18.00 | 06-Sep-2007 | 6 |
| Vintage KEUFFEL ESSER Slide Rule 4081-3 w/case | $17.61 | 19-Sep-2007 | 4 |
| K&E Log Duplex Slide Rule 4081-3 + Box & Leath | $17.01 | 17-Sep-2007 | 4 |
| Vintage Keuffel & Esser Slide Rule 4181-3 | $17.00 | 11-Sep-2007 | 4 |
| Vintage Keuffel & Esser Co. #4041 Mannheim Sli | $16.99 | 18-Sep-2007 | 1 |
| "Keuffel & Esser Co K&E Slide Rule w Box, Pouc | $16.50 | 16-Sep-2007 | 2 |
| Vintage K & E 4081-3 Slide Rule Keuffel & Esse | $16.21 | 18-Sep-2007 | 3 |
| 1937 Vintage K & E Ever-There Slide Rule No.40 | $16.05 | 01-Sep-2007 | 2 |
| Keuffel & Esser Co Slide Rule in Case Nice Pie | $16.00 | 05-Sep-2007 | 4 |
| K & E SLIDE RULE WITH LEATHER CASE N 4053-3 | $16.00 | 17-Sep-2007 | 2 |
| UNUSUAL KEUFFEL & ESSER SLIDE RULE K&E ENGINEE | $15.61 | 11-Sep-2007 | 2 |
| Antique 1908 K&E Keuffel&Esser SLIDE RULE 4088 | $15.50 | 11-Sep-2007 | 5 |
| K & E Log Log Duplex Vector Slide Rule 4083-3 | $15.50 | 04-Sep-2007 | 4 |
| Like Brand New K & E 1947 Slide Rule #4081-3- | $15.50 | 16-Sep-2007 | 6 |
| K+E Model #4081-3 slide rule w/case + extras | $15.50 | 14-Sep-2007 | 4 |
| VINTAGE 1947 KEUFFEL & ESSER CO 4081-3 SLIDE R | $15.50 | 09-Sep-2007 | 3 |
| 2 Keuffel Esser Slide Rules Charvos Drafting S | $15.50 | 12-Sep-2007 | 3 |
| VINTAGE KEUFFEL & ESSER K&E 4053-3 SLIDE RULE | $15.50 | 21-Sep-2007 | 7 |
| KEUFFEL & ESSER SLIDE RULE 68-1251 w/Case | $15.00 | 04-Sep-2007 | 2 |
| "K & E Slide Rule 4081-3, Manual Dated 1947" | $14.99 | 18-Sep-2007 | 1 |
| Vintage K&E Slide Rule ~ <4053-3> | $14.61 | 06-Sep-2007 | 4 |
| "1908 K&E Merchant's Slide Rule w/Case 4095-3 | $14.50 | 10-Sep-2007 | 5 |
| Keuffel & Esser slide ruler w/ magnifier pat 1 | $13.49 | 11-Sep-2007 | 4 |
| K+E. Keffeul & Esser Slide Rule Doric Sliderul | $13.00 | 18-Sep-2007 | 3 |
| VINTAGE KEUFFEL & ESSER BEGINNERS SLIDE RULE N | $12.50 | 02-Sep-2007 | 2 |
| K&E 1947 Slide Rule Manual N4081 Decitrig & Su | $12.50 | 15-Sep-2007 | 2 |
| 2 Vintage Slide Rules Post and K & E | $12.50 | 11-Sep-2007 | 1 |
| "Vintage Keuffel & Esser Co., Slide Rule, No. | $12.50 | 19-Sep-2007 | 2 |
| Keuffel & Esser Mannheim Slide Rule Ruler Tool | $12.50 | 23-Sep-2007 | 3 |
| """VINTAGE KEUFFEL & ESSER SLIDE RULE PAT.JUNE | $12.50 | 01-Sep-2007 | 4 |
| K&E 4080-3 Log Log Duplex Trig Slide Rule w/ C | $12.50 | 02-Sep-2007 | 2 |
| "ABOUT ANTIQUE TOOLS Lawn Mowers, K & E Slide | $12.00 | 09-Sep-2007 | 2 |
| KEUFFEL & ESSER K& E SLIDE RULE 4054 W/ CASE | $11.99 | 06-Sep-2007 | 1 |
| SLIDE RULE TIE CLIP - TIE TACK ENGINEER SLIDE | $11.51 | 13-Sep-2007 | 7 |
| K&E wood slide rule with reversable rule. | $11.50 | 10-Sep-2007 | 3 |
| K&E #4083-3 Slide Rule plus Manuals | $11.50 | 18-Sep-2007 | 4 |
| K&E 4080-3 Keuffel & Essier Co. Slide Ruler (S | $11.00 | 09-Sep-2007 | 6 |
| K & E Slide Rule withSslip Case Keuffel & Esse | $10.75 | 04-Sep-2007 | 9 |
| 3 VINTAGE SLIDE RULES KEUFFEL ESSER STERLING P | $10.50 | 15-Sep-2007 | 4 |
| Vintage K & E Slide Rule - W/C | $10.50 | 08-Sep-2007 | 3 |
| K&E Keuffel Esser Old Vintage Slide Rule Free | $10.50 | 17-Sep-2007 | 2 |
| ~ 1942 ~ Nelson Cooke Radio K&E 4139 Slide Rul | $10.49 | 23-Sep-2007 | 3 |
| Keuffel & Esser Log log slide rule 4083-3 K & | $10.08 | 05-Sep-2007 | 2 |
| VINTAGE K&E DATED 1947 SLIDE RULE | $9.99 | 01-Sep-2007 | 1 |
| K&E Keuffel & Esser Slide Rule 4054 Metal Rim | $9.99 | 19-Sep-2007 | 1 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE & CASE 4080 | $9.99 | 17-Sep-2007 | 1 |
| Vintage K&E Slide Rule 4091-3 563876 with case | $9.99 | 15-Sep-2007 | 1 |
| VINTAGE KEUFFEL & ESSER K & L SLIDE RULE & LEA | $9.99 | 01-Sep-2007 | 1 |
| "SLIDE RULE - KEUFFEL&ESSER CO., N.Y. - PAT'D- | $9.99 | 06-Sep-2007 | 1 |
| 1944 KEUFFEL & ESSER-POLYPHASE SLIDE RULE-DIEC | $9.99 | 09-Sep-2007 | 1 |
| Vintage K&E Slide Rule ~ <4031> | $9.99 | 06-Sep-2007 | 1 |
| Vintage K E Slide Rule # 41613 in Original Cas | $9.99 | 24-Sep-2007 | 2 |
| Keuffel & Esser Beginners Slide Rule 4058 C W/ | $9.99 | 16-Sep-2007 | 1 |
| Vintage Keuffel & Esser 4071-13 EICS USN Slide | $9.99 | 22-Sep-2007 | 2 |
| 1922 KEUFFEL & ESSER 4092-3 SLIDE RULE LEATHER | $9.99 | 23-Sep-2007 | 1 |
| "VINTAGE KUEFFEL ESSER CO. SLIDE RULE CASE 12. | $9.99 | 03-Sep-2007 | 1 |
| Vintage K&E Slide Rule N4041 Pat Keuffel Esser | $9.99 | 21-Sep-2007 | 1 |
| VINTAGE K & E POLYPHASE SLIDE RULE 4053-3 | $9.99 | 02-Sep-2007 | 1 |
| The Mannheim Slide Rule 1891 Manual K&E Keuffe | $9.99 | 23-Sep-2007 | 1 |
| Vintage Slide Ruler w Original Manual-Keuffel | $9.99 | 17-Sep-2007 | 1 |
| "KEUFFEL & ESSER SLIDE RULE(4058W)W/CASE,BOX+I | $9.99 | 23-Sep-2007 | 1 |
| Vintage K&E KEUFFEL ESSER SLIDE RULE # N4081-3 | $9.99 | 05-Sep-2007 | 1 |
| K & E KEUFFEL ESSER SLIDE RULE 4088-3 N4053-3 | $9.99 | 09-Sep-2007 | 1 |
| VINTAGE KEUFFEL & ESSER K&E SLIDE RULE #4080-3 | $9.99 | 06-Sep-2007 | 1 |
| Vintage Keuffel & Esser Slide Rule | $9.99 | 09-Sep-2007 | 1 |
| 4 Slide Rules K & E Sterling Acu-Math and Diet | $9.95 | 20-Sep-2007 | 1 |
| K & E Slide Rule w/Case Model 4058W Keuffel Es | $9.95 | 16-Sep-2007 | 1 |
| K & E Slide Rule w/Manual Model 681892 Keuffel | $9.95 | 12-Sep-2007 | 1 |
| "KEUFFEL & ESSER SLIDE RULE INDICATOR, Glass 6 | $9.50 | 02-Sep-2007 | 3 |
| Keuffel & Esser Mannheim Type Slide Rule-Origi | $9.00 | 09-Sep-2007 | 1 |
| "Slide Rule (2) Keuffel & Esser 4080-3, and Po | $9.00 | 20-Sep-2007 | 3 |
| Vintage Keuffel & Esser N4058W Beginners Slide | $9.00 | 14-Sep-2007 | 1 |
| K&E Slide Rule w/Manual Model 681892 Keuffel & | $8.99 | 16-Sep-2007 | 1 |
| Vintage K&E Slide Rule! L@@K!!! | $8.99 | 16-Sep-2007 | 1 |
| VINTAGE SLIDE RULE K&E 1947 ENGINEERING DRAFTI | $8.51 | 24-Sep-2007 | 2 |
| Keuffel & Esses Slide rule Model 4080-3 & Case | $8.00 | 19-Sep-2007 | 1 |
| KEUFFEL & ESSER K& E SLIDE RULE 4181 W/ CASE 1 | $7.99 | 08-Sep-2007 | 1 |
| Keuffel & Esser K&E N4058W Beginners Slide Rul | $7.99 | 07-Sep-2007 | 2 |
| Vintage Keuffel & Esser Slide Rule with Case | $7.88 | 23-Sep-2007 | 1 |
| K&E KEUFFEL ESSER Co. NY. POCKET SLIDE RULE SL | $7.50 | 14-Sep-2007 | 2 |
| 1924 Keuffel & Esser slide rule 4092-3 | $7.50 | 08-Sep-2007 | 5 |
| VINTAGE 1947 KEUFFEL & ESSER SLIDE RULE N4081- | $7.50 | 08-Sep-2007 | 2 |
| 1944 KEUFFEL & ESSER SLIDE RULE AD! | $7.00 | 12-Sep-2007 | 1 |
| "VINTAGE KEUFFEL & ESSER WOODEN SLIDE RULE W.C | $6.99 | 23-Sep-2007 | 1 |
| "KEUFFEL&ESSER CO.N.Y.SLIDE RULE,""POLYPHASE D | $6.99 | 10-Sep-2007 | 1 |
| vintage Keuffel & Esser slide rule equivalents | $6.99 | 11-Sep-2007 | 1 |
| Keuffel Esser Slide Rule Pat1900 N4053-3 | $6.95 | 14-Sep-2007 | 1 |
| "Keuffel & Kessler 4092-3 25 cm Slide Rule, ci | $6.95 | 21-Sep-2007 | 1 |
| VINTAGE KEUFFEL & ESSER CO. SLIDE RULE RULER | $6.55 | 22-Sep-2007 | 4 |
| Keuffel & Esser Slide Rule Manual 4081 Decitri | $6.00 | 11-Sep-2007 | 3 |
| Vintage Keuffel & Esser Co. Slide Rule And Cas | $5.99 | 17-Sep-2007 | 1 |
| K & E DECITRIG SLIDE RULE/CASE CNC/MACHINIST T | $5.99 | 12-Sep-2007 | 3 |
| Sterling Slide Rule by Keuffel & Esser Co. W/E | $5.99 | 12-Sep-2007 | 1 |
| Old 1930s KEUFFEL & ESSER Duplex Polyphase Sli | $5.50 | 04-Sep-2007 | 4 |
| Keuffel & Esser Co. New York Wood Slide Rule W | $5.50 | 21-Sep-2007 | 1 |
| VINTAGE 1947 DORIC K & E CO SLIDE RULE WITH CA | $5.50 | 13-Sep-2007 | 6 |
| KEUFFEL & ESSER SLIDERULE with LEATHER CASE | $5.50 | 10-Sep-2007 | 2 |
| K&E SLIDE RULE / KEUFFEL&ESSER | $5.50 | 12-Sep-2007 | 2 |
| VINTAGE K & E SLIDE RULE RULER and CASE 4055 | $5.00 | 01-Sep-2007 | 4 |
| VINTAGE KEUFFEL & ESSER CO. N. Y. SLIDE RULE N | $5.00 | 04-Sep-2007 | 1 |
| KEUFFEL & ESSER SLIDE RULE WITH CASE | $5.00 | 05-Sep-2007 | 1 |
| Keuffel & Esser Slide Rule | $5.00 | 09-Sep-2007 | 1 |
| K&E 4097 D 4097D 1937 Slide Rule with sleeve | $5.00 | 22-Sep-2007 | 1 |
| K & E Slide Rule Manual Log Log Duplex Decitri | $4.99 | 10-Sep-2007 | 1 |
| "early Keuffel & Esser 12.5"" SLIDE RULE k&e s | $4.99 | 04-Sep-2007 | 1 |
| VINTAGE KEUFFEL & ESSER 4058W SLIDE RULE WITH | $4.99 | 23-Sep-2007 | 1 |
| K&E SLIDE RULE MANUAL NO. 4081 LOG LOG DUPLEX | $4.99 | 16-Sep-2007 | 1 |
| K & E Vintage Keuffel & Esser Wood Slide Rule | $4.25 | 13-Sep-2007 | 2 |
| Keuffel & Esser 4081-3 Slide Rule With Case & | $4.00 | 19-Sep-2007 | 1 |
| Vintage K&E Keuffel & Esser K-12 Prep Slide Ru | $3.99 | 22-Sep-2007 | 1 |
| K&E vintage Slide Rule Log Log Digitrig Manual | $3.95 | 06-Sep-2007 | 2 |
| K + E c1937 Keuffel & Esser N4053-3 Slide Rule | $3.58 | 04-Sep-2007 | 2 |
| Old Keuffel & Esser Slide Rule 4081-3 Leather | $3.55 | 09-Sep-2007 | 10 |
| Vintage Keuffel & Esser Slide Rule 4000-3 Pat. | $3.33 | 09-Sep-2007 | 3 |
| Vintage Keuffel & Esser Co. Slide Rule & Case | $3.25 | 18-Sep-2007 | 2 |
| Vintage Slide Rule Instruction Book Eng. Instr | $3.10 | 08-Sep-2007 | 1 |
| -BOOK- SLIDE RULE K & E POLYPHASE DUPLEX #4071 | $3.00 | 03-Sep-2007 | 1 |
| KEUFFEL & ESSER K& E SLIDE RULE MANUAL LOG 408 | $2.99 | 08-Sep-2007 | 1 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $2.95 | 09-Sep-2007 | 1 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $2.95 | 23-Sep-2007 | 1 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $2.95 | 16-Sep-2007 | 1 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $2.95 | 03-Sep-2007 | 1 |
| K&E Log Log Duplex Decitrig 4081 slide rule MA | $2.40 | 01-Sep-2007 | 2 |
| VINTAGE KEUFFEL & ESSER BEGINNERS SLIDE RULE # | $0.99 | 15-Sep-2007 | 1 |
| "Keuffel & Esser Slide Rule # 4097C and 6"" Pa | $34.99 | 09-Sep-2007 | 0 |
| Faber Castell SLIDE RULE + 5 books Kueffel ESS | $19.99 | 23-Sep-2007 | 0 |
| "3 KEUFFEL & ESSER Slide Rules,PAT. JUNE 5,190 | $19.99 | 02-Sep-2007 | 0 |
| "Antique Slide Rule Pre-!940 Keuffel & Esser C | $18.50 | 19-Sep-2007 | 0 |
| "Antique Slide Rule Pre-!940 Keuffel & Esser C | $18.50 | 16-Sep-2007 | 0 |
| Vintage Keuffel & Esser Co. #4041 Mannheim Sli | $16.99 | 10-Sep-2007 | 0 |
| K E KEUFFEL ESSER SLIDE RULE 4081-3 W/CASE 194 | $14.99 | 04-Sep-2007 | 0 |
| RARE K & and E Keuffel Esser Slide Rule + Pick | $14.99 | 18-Sep-2007 | 0 |
| VINTAGE SLIDE RULE KEUFFEL & ESSER & CASE | $14.99 | 23-Sep-2007 | 0 |
| Lot of 5 vintage Slide Rule Rules K&E Micornta | $13.95 | 20-Sep-2007 | 0 |
| Early Keuffel & Esser Wood Slide Rule Leather | $12.99 | 11-Sep-2007 | 0 |
| Early Keuffel & Esser Wood Slide Rule Leather | $12.99 | 18-Sep-2007 | 0 |
| ANTIQUE VINTAGE SLIDE RULE K&E 1947 LOG DUPLEX | $12.99 | 17-Sep-2007 | 0 |
| "Slide Rule, Kueffel & Esser Co" | $10.00 | 13-Sep-2007 | 0 |
| Antique Kueffel & Esser Slide Rule with leathe | $10.00 | 23-Sep-2007 | 0 |
| Vintage K&E Slide Rule 4091-3 563876 with case | $9.99 | 02-Sep-2007 | 0 |
| old Tool Vintage 40s Keuffel & Esser N4053-3 S | $9.99 | 19-Sep-2007 | 0 |
| KEUFFEL & ESSER CO SLIDE RULE IN LEATHER CASE | $9.99 | 20-Sep-2007 | 0 |
| "1926 KEUFFEL & ESSER MANUAL, LOG LOG DUPLEX S | $9.99 | 14-Sep-2007 | 0 |
| KEUFFEL & ESSER VINTAGE SLIDE RULE W/ MANUAL 1 | $9.99 | 13-Sep-2007 | 0 |
| Vintage K&E Slide Rule 4091-3 563876 with case | $9.99 | 09-Sep-2007 | 0 |
| Vintage Keuffel & Esser - Beginner's Slide Rul | $9.99 | 06-Sep-2007 | 0 |
| Antique K & E Slide Rule Keuffel & Esser Co 40 | $9.99 | 22-Sep-2007 | 0 |
| Vintage Keuffel & Esser - Beginner's Slide Rul | $9.99 | 16-Sep-2007 | 0 |
| Vintage Keuffel & Esser Polyphase Slide Rule | $9.99 | 02-Sep-2007 | 0 |
| "3 KEUFFEL & ESSER Slide Rules, PAT. JUNE 5,19 | $9.99 | 23-Sep-2007 | 0 |
| VINTAGE 1920's SLIDE RULE KEUFFEL & ESSER CO. | $9.99 | 02-Sep-2007 | 0 |
| "2 VINTAGE SLIDE RULES KEUFFEL & ESSER, FREDER | $9.99 | 08-Sep-2007 | 0 |
| Keuffel & Esser Mannheim Type Slide Rule-Origi | $9.99 | 01-Sep-2007 | 0 |
| Keuffel & Esser Slide Rule Manual 4081 Decitri | $9.99 | 02-Sep-2007 | 0 |
| Keuffel & Esser # N4058W Beginner's Slide Rule | $9.99 | 16-Sep-2007 | 0 |
| KEUFFEL & ESSER CO. SLIDE RULE NO. 4080 with C | $9.99 | 10-Sep-2007 | 0 |
| KEUFFEL & ESSER SLIDE RULE & CASE 4070-3 | $9.99 | 16-Sep-2007 | 0 |
| Keuffel & Esser Vintage Slide Rule/ Engineerin | $9.99 | 17-Sep-2007 | 0 |
| "Vintage K & E Slide Rule, Model 4054" | $9.95 | 08-Sep-2007 | 0 |
| "Keuffel & Esser Co. NY Engineering Slide Rule | $9.95 | 22-Sep-2007 | 0 |
| Slide Rules 1947 K&E Log Log Duplex--1960 Acum | $9.95 | 03-Sep-2007 | 0 |
| Antique1900 Keuffel Esser 4053-3 Slide Rule | $9.95 | 07-Sep-2007 | 0 |
| Vintage Keuffel & Esser Slide Rule with Case | $9.88 | 13-Sep-2007 | 0 |
| Vintage Keuffel & Esser Slide Rule with Case | $9.88 | 06-Sep-2007 | 0 |
| Vintage Keuffel & Esser Slide Rule & Leather C | $9.00 | 17-Sep-2007 | 0 |
| Keuffel & Esser Slide Rule K and E engineer en | $8.50 | 16-Sep-2007 | 0 |
| K&E Log Log Duplex Decitrig SLIDE RULE MANUAL | $7.99 | 07-Sep-2007 | 0 |
| Keuffel & Esser N4058W Beginner's Slide Rule w | $7.95 | 19-Sep-2007 | 0 |
| K & E Slide Rule Manual Log Log Duplex No 4081 | $7.89 | 16-Sep-2007 | 0 |
| Vintage Keuffel & Esser Slide Rule #N4053-3 W/ | $6.99 | 09-Sep-2007 | 0 |
| KEUFFLER and ESSER 4081-3 SLIDE RULER | $6.99 | 09-Sep-2007 | 0 |
| Vintage Keuffel & Esser Slide Rule 681892 with | $5.99 | 13-Sep-2007 | 0 |
| Vintage KEUFFEL ESSER CO. Slide Rule Patent 19 | $5.99 | 22-Sep-2007 | 0 |
| 1945 K&E KEUFFEL & ESSER 4081 SLIDE RULE MANUA | $5.25 | 20-Sep-2007 | 0 |
| KEUFFEL & ESSER CO. SLIDE RULE - GRANDPA'S! w/ | $5.00 | 16-Sep-2007 | 0 |
| Keuffel & Esser Co K-12 Prep 681892 Slide Rule | $5.00 | 12-Sep-2007 | 0 |
| Keuffel & Esser Slide Rule N4058W | $5.00 | 20-Sep-2007 | 0 |
| Nevil Shute SLIDE RULE UK Edition | $4.99 | 20-Sep-2007 | 0 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE MANUAL 4081 | $4.99 | 21-Sep-2007 | 0 |
| VINTAGE KEUFFEL & ESSER POLYPHASE SLIDE RULE M | $4.99 | 21-Sep-2007 | 0 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE MANUAL #407 | $4.99 | 21-Sep-2007 | 0 |
| VINTAGE KEUFFEL & ESSER POLY-DUPLEX SLIDE RULE | $4.99 | 21-Sep-2007 | 0 |
| Vintage Keuffel & Esser Wooden Slide Rule- Beg | $4.99 | 18-Sep-2007 | 0 |
| VINTAGE KEUFFEL & ESSER 4058W SLIDE RULE WITH | $4.99 | 16-Sep-2007 | 0 |
| K & E N4058W Slide Rule RARE! | $4.99 | 08-Sep-2007 | 0 |
| K & E Keuffel & Esser Co. Slide Rule model 681 | $4.99 | 16-Sep-2007 | 0 |
| Vintage Keuffel & Esser CO NY Slide Rule w/ Ca | $4.99 | 17-Sep-2007 | 0 |
| KEUFFEL & ESSER SLIDE RULE K12PREP | $3.00 | 07-Sep-2007 | 0 |
| KEUFFEL & ESSER SLIDE RULE 4058W | $3.00 | 04-Sep-2007 | 0 |
| KEUFFEL & ESSER SLIDE RULE K12PREP | $3.00 | 04-Sep-2007 | 0 |
| KEUFFEL & ESSER SLIDE RULE 4058W | $3.00 | 07-Sep-2007 | 0 |
| Keuffel and Esser Co. Slide Rule | $3.00 | 13-Sep-2007 | 0 |
| "Vintage wooden Mahogany K & E Slide Rule, Mod | $2.99 | 15-Sep-2007 | 0 |
| K & E N4058W Slide Rule RARE! | $2.50 | 19-Sep-2007 | 0 |
| Vintage Slide Rules Keuffel & Esser Lawrence D | $0.99 | 09-Sep-2007 | 0 |
| 1947 Vintage Keuffel & Esser N4081-3 Slide Rul | $0.99 | 22-Sep-2007 | 0 |