| Keuffel and Esser |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Nov-2007 |
| 12 in. KEUFFELL & ESSER ANALON SYSTEM SLIDE RU | $598.85 | 16-Nov-2007 | 19 |
| "K&E 4081-5 (22"") AND K&E N 4081-3 (12"") sli | $525.00 | 16-Nov-2007 | 1 |
| 2 Beautiful Vintage K&E Slide Rules in Leather | $521.00 | 28-Nov-2007 | 13 |
| Old and Rare 20 inch 4087 Keuffel Esser K&E Sl | $490.00 | 24-Nov-2007 | 6 |
| 2 - K&E Slide Rules - 4088-3 and 4083T duplex/ | $380.00 | 07-Nov-2007 | 19 |
| Vintage 1963 K&E 68-1100 Slide Rule Deci-lon w | $255.00 | 18-Nov-2007 | 25 |
| 1908 Keuffel & Esser NY Chemist's Slide Rule K | $199.99 | 01-Nov-2007 | 1 |
| K & E KEUFFEL ESSER DECITRIG SLIDE RULE MINT I | $197.50 | 04-Nov-2007 | 11 |
| KEUFFEL & ESSER 4160 SLIDE RULE ACID BASE SALT | $193.50 | 25-Nov-2007 | 9 |
| Keuffel & Esser K+E Slide Rule Deci-Lon 68 113 | $190.50 | 30-Nov-2007 | 16 |
| K&E DECI-LON 68 1130 Pocket Slide Rule QQ | $152.50 | 04-Nov-2007 | 8 |
| "Vintage 1963 K&E 68-1100 Slide Rule, Case, or | $132.50 | 10-Nov-2007 | 12 |
| K + E Keuffel & Esser White Enamel Slide Rule | $125.00 | 19-Nov-2007 | 6 |
| "KEUFFEL & ESSER DECI-LON 10 SLIDE RULE 68-110 | $122.49 | 01-Nov-2007 | 9 |
| Keuffel & Esser K&E N-4100 Stadia slide rule w | $119.50 | 23-Nov-2007 | 10 |
| "VINTAGE KEUFFEL & ESSER ""DECI-LON"" SLIDE RU | $108.27 | 30-Nov-2007 | 13 |
| "20"" Keuffel & Esser Co. Polyphase Slide Rule | $105.83 | 22-Nov-2007 | 11 |
| "K+E Log Log Duplex Decitrig Slide Rule 4081-3 | $103.49 | 06-Nov-2007 | 14 |
| "Small 5-3/8"" K&E NY 4031 Mannheim Slide Rule | $102.50 | 08-Nov-2007 | 6 |
| "Antique 12 1/2"" Slide Rule by Keuffel & Esse | $102.50 | 27-Nov-2007 | 1 |
| NEAR MINT K & E SLIDE RULE DECI-LON W/ CASE 68 | $100.50 | 14-Nov-2007 | 2 |
| "Historic Keuffel & Esser G-1487 Slide Rule, E | $99.99 | 04-Nov-2007 | 1 |
| "20"" Keuffel & Esser Vector SLIDE RULE #4083- | $88.88 | 11-Nov-2007 | 7 |
| 20 in K & E Slide Rule 68 1608 | $88.00 | 13-Nov-2007 | 13 |
| K & E Model 4081-3 Slide Rule & Case - NEW CON | $86.00 | 12-Nov-2007 | 14 |
| K & E DECI-LON 68 1100 Slide Rule & Case & Boo | $84.95 | 26-Nov-2007 | 1 |
| Keuffel & Esser Co. K&E Deci-lon 10 Vintage Sl | $80.99 | 04-Nov-2007 | 10 |
| "1947 Keuffel & Esser N4080-5 22.5"" Slide Rul | $76.77 | 19-Nov-2007 | 5 |
| 22 inch / 2 ft. K & E Slide Rule w/ Magnifier | $76.00 | 18-Nov-2007 | 11 |
| Keuffel & Esser Slide Rule Manual 1939: Duplex | $75.00 | 20-Nov-2007 | 4 |
| Deci-Lon 10 Slide Rule 68-1100 K E Keuffel & E | $70.99 | 17-Nov-2007 | 13 |
| Japanese artilery rule from WWII Keuffel & Ess | $70.69 | 18-Nov-2007 | 5 |
| Vintage K & E Deci-lon Slide Rule & Leather Ca | $68.98 | 23-Nov-2007 | 9 |
| 22 INCH KEUFFEL & ESSER K & E SLIDE RULE MODEL | $66.66 | 19-Nov-2007 | 9 |
| Vintage K&E Slide Rule w/Case / Very Large Rul | $66.66 | 06-Nov-2007 | 5 |
| K & E Slide Rule Deci-lon 68 1100 | $66.01 | 22-Nov-2007 | 15 |
| K & E Slide Rule in Leather Case Keuffel & Ess | $66.00 | 09-Nov-2007 | 4 |
| "K & E LOG LOG DUPLEX, DECITRIG SLIDE RULE SET | $64.56 | 29-Nov-2007 | 6 |
| K&E MODEL N-4053-5S 20 INCH SLIDE RULE WITH CA | $64.00 | 23-Nov-2007 | 6 |
| Keuffel & Esser Log Duplex Decitrig Slide Rule | $62.03 | 18-Nov-2007 | 8 |
| ESTATE RARE 20.5 K & E SLIDE RULE JUNE 5 1900 | $61.00 | 22-Nov-2007 | 6 |
| KEUFFEL & ESSER VINTAGE 4053-5 SLIDE RULE WITH | $54.35 | 25-Nov-2007 | 6 |
| KEUFFEL&ESSER CO NY SLIDE RULE & LEATHER CASE | $54.05 | 22-Nov-2007 | 16 |
| Deci-Lon 10 Slide Rule 68-1100 K E Keuffel & E | $53.00 | 11-Nov-2007 | 7 |
| K&E LOG LOG DUPLEX TRIG 1947 Slide Rule w/case | $51.00 | 11-Nov-2007 | 6 |
| K & E Jet-Log Duplex Decitrig Slide Rule w/lea | $51.00 | 03-Nov-2007 | 10 |
| Vintage K & E Keuffel & Esser 4181-1 Slide Rul | $51.00 | 06-Nov-2007 | 12 |
| "K & E 4083-3 Log Log Duplex Vector Slide Rule | $51.00 | 18-Nov-2007 | 7 |
| "Vintage 6 3/4"" K&E Slide Rule" | $51.00 | 27-Nov-2007 | 17 |
| Vintage Keuffel & Esser K&E Slide Rule with Ca | $50.40 | 27-Nov-2007 | 11 |
| Slide Rule Slidedisk Emil Tröger Circular Slid | $49.00 | 11-Nov-2007 | 1 |
| K+E Log Log Duplex Decitrig 4181-3 Slide Rule | $47.00 | 06-Nov-2007 | 11 |
| K+E 10 DECI-LON SLIDE RULE | $46.77 | 11-Nov-2007 | 5 |
| Keuffel & Esser Vintage Slide Rule & Case #68- | $46.75 | 25-Nov-2007 | 11 |
| K&E Slide Rule 4053-3 Polyphase with Leather C | $46.00 | 28-Nov-2007 | 8 |
| Keuffel & Esser Co. Deci-Lon 10 Slide Rule | $45.00 | 15-Nov-2007 | 1 |
| Seven Slide Rules- Some Vintage -K & E--Post-- | $44.50 | 03-Nov-2007 | 10 |
| Keuffel & Esser 4053 Replacement Slide Rule In | $44.00 | 07-Nov-2007 | 14 |
| K+E 10 DECI-LON SLIDE RULE | $43.13 | 11-Nov-2007 | 8 |
| Two Old K&E Slide Rules # 4045 Mannheim and # | $41.00 | 25-Nov-2007 | 5 |
| "Keuffel & Esser K&E N-4096 desk-top slide rul | $41.00 | 29-Nov-2007 | 5 |
| KEUFFEL &ESSER CO ENGINEER SLIDE RULE.POCKET/M | $40.00 | 13-Nov-2007 | 9 |
| 3 Slide Rules Faber & Keuffel & Esser 4053-3 & | $38.51 | 29-Nov-2007 | 10 |
| K&E 4081-3 Log Log Duplex Decitrig Slide Rule | $38.50 | 12-Nov-2007 | 2 |
| VINTAGE K & E ENGINEER SURVEYOR SLIDE RULE W/ | $37.98 | 29-Nov-2007 | 9 |
| Vintage K&E 4181-1 Pocket Slide rule Sliderule | $37.97 | 19-Nov-2007 | 9 |
| Keuffel & Esser K&E Log Log Duplex Decitrig Sl | $37.75 | 15-Nov-2007 | 4 |
| K&E 1947 Slide Rule Log Log Duplex Decitrig | $37.10 | 05-Nov-2007 | 7 |
| KEUFFEL ESSER K & E SLIDE RULE w/case box manu | $37.00 | 07-Nov-2007 | 1 |
| Keuffel & Esser K&E 4081-3 slide rule w/case a | $36.99 | 23-Nov-2007 | 7 |
| "Lot Slide Rules K&E triangular scale Dietzgen | $36.01 | 25-Nov-2007 | 23 |
| LOT DRAFTING SCALE DIETZGEN KEUFFEL & ESSER SL | $36.00 | 18-Nov-2007 | 10 |
| Keuffel & Esser K&E 4081-3 slide rule w/case a | $36.00 | 27-Nov-2007 | 7 |
| K+E Slide Rules...Deci-Lon Inst. Manual | $34.99 | 10-Nov-2007 | 6 |
| VINTAGE KEUFFEL & ESSER CO. 4081-3 SLIDE RULE | $34.00 | 04-Nov-2007 | 4 |
| Keuffel & Esser K&E 4081-3 slide rule w/case b | $34.00 | 30-Nov-2007 | 7 |
| "Vintage 20"" Keuffel & Esser K&E Slide Rule 6 | $33.99 | 05-Nov-2007 | 9 |
| VINTAGE K&E KEUFFEL ESSER SLIDE RULE w CASE BO | $33.50 | 18-Nov-2007 | 7 |
| Keuffel & Esser Deci-Lon Slide Rule in Origina | $33.33 | 06-Nov-2007 | 8 |
| Vintage K&E Model D4053-3 10-inch Slide Rule a | $33.00 | 24-Nov-2007 | 2 |
| Keuffel & Esser 4139 Cooke Radio Slide Rule w/ | $32.77 | 26-Nov-2007 | 3 |
| Vintage K&E Keuffel & Esser SLIDE RULE 4083-3 | $32.00 | 08-Nov-2007 | 7 |
| Keuffel & Esser K&E Slide Rule Magnifier 4815- | $31.50 | 08-Nov-2007 | 4 |
| K & E Duplex Slide Rule Indicator Keuffel & Es | $31.01 | 20-Nov-2007 | 9 |
| Keuffel and Esser K&E 4080-3 Slide Rule w/case | $31.00 | 04-Nov-2007 | 8 |
| The Slide Rule KEUFFEL & ESSER 1891 Manual | $31.00 | 05-Nov-2007 | 2 |
| K&E Slide Rule 4092-3 w/ Orig Leather case | $31.00 | 04-Nov-2007 | 7 |
| Vintage Keuffer and Esser Co. Slide Rule w Lea | $30.99 | 12-Nov-2007 | 12 |
| RARE K+E KEUFFEL & ESSER 4161-1 POCKET SLIDE R | $29.37 | 07-Nov-2007 | 2 |
| "Keuffel & Esser K&E 68 1210 Decitrig slide ru | $29.00 | 09-Nov-2007 | 8 |
| KEUFFEL & ESSER K & E SLIDE RULE LEATHER CASE | $28.75 | 06-Nov-2007 | 4 |
| KEUFFEL & ESSER CO. SLIDE RULE N4053-5 (20 INC | $28.54 | 02-Nov-2007 | 5 |
| K & E LOG LOG DUPLEX POCKET SLIDE RULE | $28.36 | 11-Nov-2007 | 7 |
| Vintage K&E Slide Rule 4097D Keuffel & Esser & | $28.00 | 20-Nov-2007 | 3 |
| Vintage K&E Keuffel & Esser Slide Rule 4083-3 | $27.50 | 29-Nov-2007 | 7 |
| KEUFFEL & ESSER SLIDE RULE OLD ENGINEERING TOO | $27.00 | 19-Nov-2007 | 9 |
| 1947 K&E Slide Rule Keuffel & Esser Log Log De | $27.00 | 25-Nov-2007 | 9 |
| 1938 - K&E Keuffel & Esser VINTAGE SLIDE RULE | $26.58 | 14-Nov-2007 | 3 |
| Keuffel & Esser 4045 Slide Rule Mannheim K+E | $26.55 | 28-Nov-2007 | 9 |
| "1939 KEUFFEL & ESSER SLIDE RULE w/ LEATHER CA | $26.50 | 25-Nov-2007 | 3 |
| KEUFFEL & ESSER BEGINNERS SLIDE RULE MIB MINT | $26.25 | 17-Nov-2007 | 3 |
| K & E Keuffel & Esser 4181-1 Slide Rule 1947 D | $26.00 | 14-Nov-2007 | 7 |
| "Vintage 20"" Keuffel & Esser K&E Slide Rule 4 | $26.00 | 05-Nov-2007 | 7 |
| LOT EARLY SLIDE RULES K & E DENNERT & PAPE ARI | $26.00 | 08-Nov-2007 | 7 |
| KEUFFEL & ESSER K & E Slide Rule 1947 4081-3 | $26.00 | 13-Nov-2007 | 8 |
| Vintage K & E Keuffel & Esser 4181-1 Slide Rul | $26.00 | 15-Nov-2007 | 5 |
| VINTAGE K & E 1947 SLIDE RULE w/ Leather case | $26.00 | 25-Nov-2007 | 12 |
| Keuffel & Esser Co. DORIC Slide Rule w/Case NI | $25.00 | 30-Nov-2007 | 9 |
| K & E Keuffel & Esser Slide Rules hc 1955 &oth | $24.99 | 12-Nov-2007 | 1 |
| Keuffel & Esser 4091-3 Slide Rule w/ Leather C | $24.50 | 27-Nov-2007 | 3 |
| KEUFFEL & ESSER & MORE-RULERS/SLIDES/DRAFTING | $24.50 | 30-Nov-2007 | 8 |
| 1947 KEUFFEL & ESSER SLIDE RULE 4083-3 CASE | $24.03 | 01-Nov-2007 | 6 |
| K&E Slide Rule 4053-3 Polyphase with Leather C | $23.86 | 21-Nov-2007 | 5 |
| Keuffel & Esser 1947 mdl#4181-3 Slide Rule w C | $23.80 | 27-Nov-2007 | 3 |
| Keuffel and Esser 1947 DuplexDecitrig Slide Ru | $23.50 | 11-Nov-2007 | 8 |
| VINTAGE TOWER DRAFTING TOOL SET W/CASE & K&E S | $23.37 | 08-Nov-2007 | 4 |
| Vintage Wooden KEUFFEL & ESSER Slide Rule & Ca | $23.05 | 15-Nov-2007 | 2 |
| K&E 1954 Slide Rule With Box Leather Case Manu | $23.00 | 18-Nov-2007 | 9 |
| Antique K&E Polyphase Duplex Slide Rule wCase/ | $22.75 | 27-Nov-2007 | 4 |
| K E SLIDE RULE-LEATHER CASE- VERY NICE CONDITI | $22.50 | 11-Nov-2007 | 10 |
| Keuffel & Esser Co slide rule w/ case 4070-3 n | $22.50 | 21-Nov-2007 | 7 |
| Vintage Keuffel & Esser Co Slide Rule with lea | $22.05 | 07-Nov-2007 | 8 |
| K&E LOG LOG VECTOR Sliderule | $21.50 | 24-Nov-2007 | 4 |
| "KEUFFEL & ESSER ANTIQUE SLIDE RULE SCIENCE, M | $21.50 | 13-Nov-2007 | 4 |
| Vintage Keuffel and Esser Slide Rule 4092 | $21.50 | 24-Nov-2007 | 5 |
| "Vintage Keuffel & Esser 10 1/2"" Slide Rule-N | $21.50 | 11-Nov-2007 | 4 |
| Vintage Keuffel & Esser Slide Rule & Leather C | $21.50 | 24-Nov-2007 | 4 |
| PAIR OF KEUFFEL & ESSER SLIDE RULES & A DIETZG | $21.30 | 16-Nov-2007 | 11 |
| K+E Log Log Duplex Decitrig Slide Rule In Box | $20.99 | 12-Nov-2007 | 6 |
| KEUFFEL & ESSER SLIDE RULE + ABACUS & MAGIC CA | $20.51 | 16-Nov-2007 | 5 |
| NICE K+E KEUFFEL & ESSER N.Y. SLIDE RULE W LEA | $20.50 | 10-Nov-2007 | 8 |
| Keuffel & Esser Slide Rule with Case 223 | $20.50 | 06-Nov-2007 | 5 |
| "Slide Rules...Lot of 5..Vintage K & E, Post, | $20.50 | 04-Nov-2007 | 5 |
| Keuffel Esser KE Slide Rule 4054 with Case Woo | $20.47 | 23-Nov-2007 | 2 |
| K&E Log Log Duplex Decitrig SLIDE RULE with Ca | $20.01 | 01-Nov-2007 | 3 |
| "Lot of 5 Slide Rules: K & E, Relay, Mannheim, | $20.00 | 11-Nov-2007 | 8 |
| Vintage Log Log 1947 Keuffel & Esser Slide Rul | $20.00 | 04-Nov-2007 | 5 |
| KEUFFEL & ESSER CO. K&E 4081-3 VINTAGE SLIDE R | $19.99 | 12-Nov-2007 | 1 |
| K&E Log Log Duplex Decitrig Slide Rule 4081-3 | $19.99 | 03-Nov-2007 | 1 |
| RARE Keuffel & Esser 4091-3 Log Log Decitrig S | $19.99 | 02-Nov-2007 | 1 |
| Vintage 1930's KEUFFEL & ESSER SLIDE RULE /LEA | $19.95 | 22-Nov-2007 | 1 |
| K & E Polyphase Slide Rule-N4053-3 Case+Box+Ma | $19.30 | 11-Nov-2007 | 2 |
| K&E 4083-3 Log Log Duplex Vector Slide Rule 19 | $18.90 | 27-Nov-2007 | 5 |
| KEUFFEL & ESSER CO. SLIDE RULE - GRANDPA'S! w/ | $18.50 | 11-Nov-2007 | 4 |
| VINTAGE K+E SLIDE RULE WITH ORIGINAL LEATHER C | $18.50 | 03-Nov-2007 | 7 |
| Keuffel and Esser Slide Rule with Hard Leather | $17.73 | 02-Nov-2007 | 9 |
| KEUFFEL & ESSER SLIDE RULE #4081-3 /LEATHER CA | $17.61 | 22-Nov-2007 | 4 |
| "VINTAGE SLIDE RULE, K & E MODEL GP-12, WITH L | $17.60 | 25-Nov-2007 | 2 |
| ESTATE SLIDE RULE KEUFFEL & ESSER K & E LEATHE | $17.50 | 05-Nov-2007 | 4 |
| KEUFFEL ESSER DRAFTING SLIDE RULE CATALOG BOOK | $17.50 | 06-Nov-2007 | 4 |
| 1915 THE USE OF THE SLIDE RULE BOOK BY KEUFFEL | $17.50 | 21-Nov-2007 | 3 |
| beginner slide rule Keuffel Esser N4058W vinta | $17.28 | 24-Nov-2007 | 3 |
| Vintage Keuffel & Esser Co.Slide Rule w/ Leath | $17.26 | 03-Nov-2007 | 7 |
| "1939 K&E Slide Rule and Instructions, Naval" | $16.95 | 25-Nov-2007 | 1 |
| VINTAGE K&E 4081-3 LOG LOG DUPLEX DECITRIG SLI | $16.50 | 18-Nov-2007 | 4 |
| TWO K & E SLIDE RULES WITH ORIGINAL CASES | $16.50 | 25-Nov-2007 | 3 |
| K+E KEUFFEL & ESSER 4161-1 POCKET SLIDE RULE w | $16.50 | 08-Nov-2007 | 3 |
| KEUFFEL & ESSER DORIC SLIDE RULE W/ CASE RULER | $16.50 | 04-Nov-2007 | 2 |
| "1958 Keuffel&Esser Slide Rule, Case, Booklet, | $16.50 | 08-Nov-2007 | 2 |
| K&E Slide Rule w Case * Sliderule * Slipstick | $16.50 | 29-Nov-2007 | 10 |
| Vintage Keuffel & Esser Log Duplex Decitrig Sl | $16.49 | 23-Nov-2007 | 5 |
| "Vintage K+E Keuffel & Esser Co.,NY Slide Rule | $16.27 | 03-Nov-2007 | 4 |
| Keuffel & Esser Log Log Duplex Decitrig Slide | $16.25 | 03-Nov-2007 | 1 |
| Antique Keuffel & Esser Slide Rule 1900s | $16.19 | 08-Nov-2007 | 4 |
| K+E N4053-3 Polyphase Slide Rule w/Case and Bo | $16.13 | 26-Nov-2007 | 8 |
| 3 Kueffel & Esser K&E Slide Rule Manual N4080 | $16.07 | 04-Nov-2007 | 3 |
| Keuffel & Esser Slide Rule with Manual | $16.00 | 08-Nov-2007 | 6 |
| Keuffel & Esser 4081 Slide Rule w/Case K+E | $15.67 | 29-Nov-2007 | 4 |
| Vintage Keuffel & Esser Slide Rule with Leathe | $15.61 | 29-Nov-2007 | 3 |
| Keuffel & Esser Slide Rule Manual 1939: Duplex | $15.55 | 24-Nov-2007 | 7 |
| K & E Keuffel Esser Favorite Slide Rule #4055 | $15.50 | 20-Nov-2007 | 2 |
| SLIDE RULER - K & E DUPLEX- With Case and Box | $15.50 | 08-Nov-2007 | 2 |
| "K&E 4161-1 Pocket Slide Rule w/case 6""" | $15.50 | 25-Nov-2007 | 5 |
| KUEFFELS 7 ESSER CO. SLIDE RULER SET | $15.50 | 17-Nov-2007 | 6 |
| K&E N4083-3 LOG LOG DUPLEX VECTOR SLIDE RULE | $15.50 | 08-Nov-2007 | 2 |
| Keuffel & Esser Versalog Slide Rule Ruler Case | $15.50 | 02-Nov-2007 | 3 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE~N4053-3~193 | $14.99 | 23-Nov-2007 | 1 |
| 1947 Slide Rule Manual K & E Keuffel & Esser N | $14.75 | 15-Nov-2007 | 12 |
| Keuffel & Esser K-E 4053-3 Slide Rule | $14.61 | 17-Nov-2007 | 5 |
| Antique Keuffel & Esser Co. Ivorite Slide Rule | $14.50 | 01-Nov-2007 | 3 |
| "K&E Slide Rule N4053-3 11"" Keuffel & Esser" | $14.11 | 15-Nov-2007 | 2 |
| Slide Rule Ruler Keuffel Esser Case KE 1933 | $14.00 | 23-Nov-2007 | 2 |
| 1954 Vintage KEUFFEL ESSER DRAFTING SLIDE RULE | $13.54 | 15-Nov-2007 | 4 |
| Vintage KEUFFEL ESSER DRAFTING SLIDE RULE CATA | $13.27 | 14-Nov-2007 | 5 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE & CASE PAT. | $13.15 | 18-Nov-2007 | 2 |
| Vintage slide ruler by Keuffel & Esser 4054 | $13.00 | 27-Nov-2007 | 4 |
| Vintage K & E Slide Rule 4058W Keuffel & Esser | $13.00 | 03-Nov-2007 | 1 |
| "VINTAGE KEUFFEL & ESSER CO, NY 10"" SLIDE RUL | $12.99 | 14-Nov-2007 | 1 |
| Vintage K + E Slide Rule & Case | $12.50 | 25-Nov-2007 | 4 |
| Slide Rule Lot POST 1460 Versalog K&E Dietzgen | $12.50 | 06-Nov-2007 | 2 |
| Vintage K&E 8-Scale Slide Rule w/Mannheim Manu | $12.50 | 10-Nov-2007 | 4 |
| Keuffel & Esser #N4053-3 Slide Rule/case | $12.50 | 03-Nov-2007 | 4 |
| Keuffel & Esser Desk Top Leather Slide Rule | $12.47 | 15-Nov-2007 | 2 |
| Vintage K&E Plastic Slide Rule Model 681892 | $12.07 | 01-Nov-2007 | 9 |
| VINTAGE DEUFFEL & ESSER SLIDE RULER W/HARD LEA | $11.75 | 11-Nov-2007 | 3 |
| K & E SLIDE RULE W/LEATHER CASE KEUFFEL ESSER | $11.73 | 20-Nov-2007 | 3 |
| Collectible K & E Slide Rule with Leather Case | $11.50 | 26-Nov-2007 | 4 |
| K&E Keuffel & Esser slide rule w/ leather case | $11.50 | 09-Nov-2007 | 2 |
| "K E SLIDE RULE, #4161-1, KEUFFEL ESSER" | $11.50 | 24-Nov-2007 | 4 |
| Vintage 12 inch K & E Slide Rule | $11.49 | 18-Nov-2007 | 3 |
| K&E Log Log Duplex Decitrig SLIDE RULE with Ca | $11.38 | 04-Nov-2007 | 2 |
| Vintage Doric Keuffel & Esser SLIDE RULE 9081- | $11.25 | 12-Nov-2007 | 4 |
| Keuffel & Esser Company Slide Rule and Leather | $11.01 | 03-Nov-2007 | 2 |
| Keuffel & Esser SLIDE RULE Instructional Manua | $10.75 | 13-Nov-2007 | 4 |
| "K+E SLIDE RULES, SELF INSTRUCTION MANUAL! 195 | $10.50 | 17-Nov-2007 | 5 |
| Vintage K & E Polyphase Slide Rule 4054 Leathe | $10.50 | 25-Nov-2007 | 3 |
| 1955 SLIDE RULE MANUAL KEUFFEL & ESSER K & E 4 | $10.50 | 07-Nov-2007 | 7 |
| K & E / KEUFFEL & ESSER SLIDE RULE 4081-3 1947 | $10.50 | 06-Nov-2007 | 3 |
| "K & E polyphase slide rule, with leather case | $10.50 | 15-Nov-2007 | 3 |
| Keuffel & Esser 12 1/2 Slide Rule & Log Duplex | $10.00 | 13-Nov-2007 | 2 |
| Slide Rule Keuffel & Esser Company 1947 | $10.00 | 25-Nov-2007 | 1 |
| "Antique 6"" Slide Rule by Keuffel & Esser, No | $9.99 | 27-Nov-2007 | 1 |
| Vintage Keuffel & Esser No.4081-3 Slide Rule w | $9.99 | 18-Nov-2007 | 1 |
| VINTAGE K&E KKEUFFEL & ESSER SLIDE RULE 4090-3 | $9.99 | 19-Nov-2007 | 2 |
| 1947 Vintage Kueffel & Esser Duplex Decitrig S | $9.99 | 13-Nov-2007 | 1 |
| 7 Vintage Rulers Inc SLIDE K&E Keuffel Esser 4 | $9.99 | 02-Nov-2007 | 1 |
| Ever-There Slide Rule 1936 Keuffel & Esser Co. | $9.99 | 19-Nov-2007 | 1 |
| K&E Beginner's Slide Rule - Keuffel & Esser 40 | $9.99 | 02-Nov-2007 | 1 |
| "Vintage Keuffel & Esser BIG 20"" Slide Rule & | $9.99 | 12-Nov-2007 | 1 |
| "Old K&E SLIDE RULE, No. 4080-3, with Leather | $9.99 | 13-Nov-2007 | 1 |
| Vintage K&E Keuffel & Esser Slide Rule 4081 w/ | $9.99 | 05-Nov-2007 | 1 |
| "Keuffel & Esser Polyphase ""SLIDE RULER w/CAS | $9.99 | 28-Nov-2007 | 1 |
| Keuffel & Esser 4053-3 Slide Rule Polyphase w/ | $9.99 | 30-Nov-2007 | 1 |
| KRACK Engineering Pocket Slide Rule w/Case in | $9.99 | 28-Nov-2007 | 1 |
| Keuffel & Esser 4081-3 Slide Rule Log Duplex D | $9.99 | 23-Nov-2007 | 1 |
| Vintage Keuffel & Esser K&E Slide Ruler 4083-3 | $9.99 | 10-Nov-2007 | 1 |
| Vintage Slide Rule By Keuffel & Esser Co 4088- | $9.99 | 18-Nov-2007 | 1 |
| K&E SLIDE RULE MODEL 4150-1 WITH LEATHR CASE 1 | $9.95 | 09-Nov-2007 | 1 |
| Antique c1920s KEUFFEL & ESSER Slide Rule in C | $9.95 | 13-Nov-2007 | 1 |
| K&E 1947 Log Log Duplex Decitrig Slide Rule N4 | $9.95 | 01-Nov-2007 | 2 |
| Vintage 1930's KEUFFEL & ESSER SLIDE RULE /LEA | $9.95 | 24-Nov-2007 | 1 |
| Vintage K & E 4080-3 12 1/2'' Slide Rule w/ Ca | $9.95 | 13-Nov-2007 | 1 |
| 1891MANNHEIM SLIDE RULE MANUAL KEUFFEL & ESSER | $9.95 | 10-Nov-2007 | 1 |
| 4081-3 KEUFFEL & ESSER SLIDE RULE..ONE OWNER W | $9.50 | 11-Nov-2007 | 2 |
| "1925 Phillips Slide Rule Manual, Book Eugene | $9.50 | 11-Nov-2007 | 1 |
| Keuffel and Esser DORIC slide rule 9071-3 | $9.38 | 11-Nov-2007 | 3 |
| 4081-3 KEUFFEL & ESSER SLIDE RULE..ONE OWNER W | $9.00 | 11-Nov-2007 | 1 |
| VINTAGE KEUFFEL & ESSER CO. 4081-3 SLIDE RULE | $8.99 | 25-Nov-2007 | 2 |
| K&E 4081-3 LOG LOG DUPLEX DECITRIG SLIDE RULE | $8.99 | 20-Nov-2007 | 1 |
| """K & E"" Slide Rule #N4058W w/Case, 10 1/2"" | $8.99 | 26-Nov-2007 | 1 |
| Antique Keuffel & Esser Co. Slide Rule Pat Dat | $8.99 | 11-Nov-2007 | 1 |
| Vintage K&E Slide Rule 4081-3 Log Log Duplex n | $8.95 | 12-Nov-2007 | 1 |
| vintage KEUFFEL & ESSER slide rule with leathe | $8.56 | 10-Nov-2007 | 11 |
| VINTAGE K&E WOOD SLIDE RULE | $8.50 | 27-Nov-2007 | 2 |
| Vintage Keuffel & Esser High Quality Slide Rul | $8.00 | 01-Nov-2007 | 1 |
| Vintage K&E Slide Rule Manual No. N4081 - Nice | $8.00 | 24-Nov-2007 | 2 |
| 1937 1939 K E KEUFFEL & ESSER CO SLIDE RULES 4 | $7.99 | 14-Nov-2007 | 1 |
| Vintage Keuffel Esser 1376T 23 Slide Rule | $7.99 | 01-Nov-2007 | 1 |
| Keuffel & Esser slide rule | $7.99 | 05-Nov-2007 | 1 |
| Vintage KEUFFEL & ESSER Slide Rule with case | $7.50 | 17-Nov-2007 | 9 |
| Lot of 2 different vintage Keuffel & Esser sli | $7.17 | 18-Nov-2007 | 4 |
| Keuffel & Esser Manual for Polyphase Slide Rul | $6.99 | 26-Nov-2007 | 1 |
| Keuffels & Esser Sliderule Slide Ruler Old Cal | $6.99 | 15-Nov-2007 | 1 |
| ANTIQUE K&E Beginners Slide Rule No. 4058 | $6.99 | 18-Nov-2007 | 1 |
| SLIDE RULE - K & E - #N4041 | $6.95 | 13-Nov-2007 | 1 |
| Old K & E Wood Slide Rule Pat. 1900 in Good Co | $6.75 | 04-Nov-2007 | 2 |
| Keuffel & Esser Co. New York Wood Slide Rule W | $6.50 | 06-Nov-2007 | 2 |
| "Vintage Keuffel & Esser Co. Slide Rule,w/ lea | $6.50 | 05-Nov-2007 | 2 |
| KEUFFEL & ESSER CO. SLIDE RULE LEATHER CASE | $6.45 | 02-Nov-2007 | 2 |
| "KUEFFEL&ESSER CO. N.Y. SLIDERULE PAT. JUNE 5, | $6.00 | 30-Nov-2007 | 3 |
| "K&E Vintage Keuffel & Esser Co. 6"" Slide Rul | $6.00 | 02-Nov-2007 | 2 |
| "4 Vintage Slide Rules: 2 K & E, 1 Dietzgen, 1 | $6.00 | 11-Nov-2007 | 3 |
| SLIDE RULE - VINTAGE Keuffel & Esser New York | $5.99 | 20-Nov-2007 | 1 |
| Vintage Keuffel & Esser Polyphase Slide Rule 4 | $5.99 | 04-Nov-2007 | 1 |
| "Keuffel & Esser Co, Slide Rule w/ Manual + le | $5.50 | 15-Nov-2007 | 2 |
| 2 Slide Rules Keuffel & Esser and Precision St | $5.50 | 05-Nov-2007 | 2 |
| K&E Log Log Dec + Dietzgen 1768P Maniphase Sli | $5.00 | 11-Nov-2007 | 1 |
| Eugene Dietzgen Slide Ruler Rule K E Leather C | $5.00 | 30-Nov-2007 | 1 |
| Ca 1908 Keuffel & Esser Slide Rule with Leathe | $5.00 | 12-Nov-2007 | 1 |
| SLIDE RULE DATED 1947 k + E W/BOX SLIDES GREAT | $5.00 | 04-Nov-2007 | 1 |
| ** VINTAGE SLIDE RULE ~ Keuffel & Esser * N405 | $4.99 | 04-Nov-2007 | 1 |
| KEUFFEL & ESSER SLIDE RULE WITH LEATHER CASE | $4.99 | 28-Nov-2007 | 1 |
| KEUFFEL AND ESSER CO. NY. SLIDERULE VINTAGE | $4.99 | 25-Nov-2007 | 1 |
| Vintage K&E Beginner's Slide Rule 4058 Wood | $4.99 | 04-Nov-2007 | 1 |
| "CLEAN KEUFEL & ESSER, K & E, N4058W BEGINNER | $4.99 | 15-Nov-2007 | 2 |
| "Keuffel & Esser NY Slide Rule with Case Dec 2 | $4.99 | 07-Nov-2007 | 1 |
| 1936 Keuffel & Esser The Log Log Trig Slide Ru | $4.99 | 03-Nov-2007 | 1 |
| Keuffel and Esser slide rule 4081-3 | $4.99 | 11-Nov-2007 | 1 |
| 1955 K&E LOG DUPLEX DECITRIG SLIDE RULE MANUAL | $4.95 | 04-Nov-2007 | 1 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE IN CASE | $4.30 | 03-Nov-2007 | 2 |
| Vintage KEUFFEL & ESSER SLIDE RULE Wood BEGINN | $3.99 | 06-Nov-2007 | 1 |
| K & E beginners slide rule/case | $3.99 | 20-Nov-2007 | 1 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $3.95 | 11-Nov-2007 | 1 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $3.95 | 04-Nov-2007 | 1 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $3.95 | 25-Nov-2007 | 1 |
| K&E Slide Rule Manual Log Log Duplex Decitrig | $3.95 | 15-Nov-2007 | 2 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $3.95 | 18-Nov-2007 | 1 |
| vintage KEUFFEL & ESSER slide rule with leathe | $3.90 | 10-Nov-2007 | 4 |
| old KE Keuffel ESSER slide Rule vintage calcul | $2.75 | 06-Nov-2007 | 2 |
| K&E SLIDE RULE 4081-3 w/ CASE KEUFFEL & ESSER | $2.50 | 17-Nov-2007 | 1 |
| KEUFFEL & ESSER CO. SLIDE RULE NO.4081LOG LOG | $2.35 | 18-Nov-2007 | 2 |
| VINTAGE LOT 2 K+E SCALES 1 LAWERENCE SLIDE RUL | $1.30 | 13-Nov-2007 | 3 |
| Vintage K & E Slide Rule w/ Case - Model 4053- | $0.99 | 03-Nov-2007 | 1 |
| 1940's VINTAGE K&E SLIDE RULE 4081-3S WITH CAS | $60.00 | 13-Nov-2007 | 0 |
| Keuffel & Esser 1943 4080 Slide Rule w/Manual | $49.99 | 25-Nov-2007 | 0 |
| VINTAGE KEUFFEL & ESSER CO. N. Y. SLIDE RULE N | $29.99 | 15-Nov-2007 | 0 |
| K & E KEUFFEL ESSER SLIDE RULE 4181-3 DUPLEX D | $29.99 | 28-Nov-2007 | 0 |
| K&E 4083-3 slide rule | $25.00 | 16-Nov-2007 | 0 |
| "Vintage K + E SLIDE RULE w/original box, NR" | $24.99 | 22-Nov-2007 | 0 |
| KUEFFEL & ESSER LOG LOG DUPLEX- SLIDE RULE EXC | $24.88 | 13-Nov-2007 | 0 |
| K&E 4083-3 slide rule | $20.00 | 16-Nov-2007 | 0 |
| "VINTAGE KEUFFEL & ESSER CO, NY 10"" SLIDE RUL | $19.99 | 01-Nov-2007 | 0 |
| KEUFFEL & ESSER K & E SLIDE RULE IN BOX 1900 N | $19.99 | 06-Nov-2007 | 0 |
| Vintage K&E Keuffel & Esser SLIDE RULE 4083-3 | $19.99 | 01-Nov-2007 | 0 |
| 1900 KEUFFEL & ESSER SLIDE RULE 4053-3 - WOOD | $19.99 | 18-Nov-2007 | 0 |
| Vintage K&E Keuffel & Esser SLIDE RULE 4070-3 | $19.99 | 02-Nov-2007 | 0 |
| "Vintage Keuffel & Esser slide rules, rulers, | $16.95 | 14-Nov-2007 | 0 |
| K & E Log Log Duplex Vector Slide Rule No. 408 | $14.99 | 20-Nov-2007 | 0 |
| Vintage Keuffel & Esser Slide Rule #4081-3 - N | $14.99 | 18-Nov-2007 | 0 |
| Slide Rule Keuffel & Esser Co. KE Ruler With B | $14.99 | 14-Nov-2007 | 0 |
| Keuffel & Esser slide rule 4058-W | $12.99 | 05-Nov-2007 | 0 |
| "Keuffel & Esser Co. N.Y. Slide Rule Pat. June | $10.00 | 01-Nov-2007 | 0 |
| "Keuffel & Esser Co. N.Y. Slide Rule Pat. June | $10.00 | 08-Nov-2007 | 0 |
| K E KEUFFEL ESSER SLIDE RULE 4081-3 W/CASE 194 | $9.99 | 21-Nov-2007 | 0 |
| Vintage Keuffel esser MANHEIM SLIDE RULE W/CAS | $9.99 | 18-Nov-2007 | 0 |
| KEUFFEL & ESSER K& E reversible slide rule #40 | $9.99 | 11-Nov-2007 | 0 |
| Vintage slide ruler by Keuffel & Esser 4054 | $9.99 | 19-Nov-2007 | 0 |
| Early Keuffel&Esser Co NY Slide Rule 4080-3 &B | $9.99 | 22-Nov-2007 | 0 |
| Keuffel & Esser Beginer's Slide Rule 4058c & B | $9.99 | 22-Nov-2007 | 0 |
| 3 VINTAGE SLIDE RULES K & E LAWRENCE AND DIETZ | $9.99 | 04-Nov-2007 | 0 |
| KEUFFEL & ESSER CO. NY. SLIDE RULE& CASE. N RE | $9.99 | 11-Nov-2007 | 0 |
| "Keuffel & Esser SLIDE RULE Pat. June 5,'00 Mo | $9.99 | 04-Nov-2007 | 0 |
| 19th c KEUFFEL&ESSER BEGINNER SLIDE RULE W/BOX | $9.99 | 02-Nov-2007 | 0 |
| Vintage K & E Mannheim Slide Rule Model 4053-3 | $9.99 | 25-Nov-2007 | 0 |
| 4090-3 Log Log Trig - Keuffel & Esser Co. NY S | $9.99 | 27-Nov-2007 | 0 |
| Keuffel & Esser Beginer's Slide Rule 4058c & B | $9.99 | 15-Nov-2007 | 0 |
| Antique Keuffel & Esser Co. Slide Rule Pat Dat | $8.99 | 03-Nov-2007 | 0 |
| Two vintage slide rulers including Keuffel Ess | $8.00 | 10-Nov-2007 | 0 |
| Keuffel & Esser Co. NY Beginner's SLIDE RULE 4 | $7.99 | 25-Nov-2007 | 0 |
| K&E PolyPhase Duplex Slide Rule manual | $7.99 | 05-Nov-2007 | 0 |
| KEUFFEL & ESSER K-12 PREP # 681892 SLIDE RULE | $7.99 | 13-Nov-2007 | 0 |
| Vintage 1928 Keuffel & Esser Co. Slide Rule No | $7.00 | 04-Nov-2007 | 0 |
| Lot of 2 Vintage Slide Rules Post K&E Occupied | $6.99 | 08-Nov-2007 | 0 |
| "Keuffel & Esser Co. N.Y. Slide Rule Pat. June | $6.00 | 29-Nov-2007 | 0 |
| "Vintage KEUFFEL & ESSER BEGINNER'S SLIDE RULE | $5.99 | 16-Nov-2007 | 0 |
| K&E Beginner's Slide Rule 4058 W | $5.00 | 12-Nov-2007 | 0 |
| Vintage Keuffel & Esser #4081-3 Slide Rule w/C | $5.00 | 18-Nov-2007 | 0 |
| Old Wooden Wood Keuffel & Esser Slide Rule W/C | $5.00 | 25-Nov-2007 | 0 |
| ANTIQUE K&E Beginners Slide Rule No. 4058 | $5.00 | 05-Nov-2007 | 0 |
| KEUFFEL & ESSER SLIDE RULE PAT. JUNE 1900 | $5.00 | 07-Nov-2007 | 0 |
| KEUFFEL & ESSER CO PAT 6/5/1900 SLIDE RULE # N | $4.99 | 14-Nov-2007 | 0 |
| Keuffel & Esser Log Duplex Decitrig Slide Rule | $4.99 | 29-Nov-2007 | 0 |
| 1944 Keuffel & Esser CO. The Polyphase Slide R | $4.99 | 03-Nov-2007 | 0 |
| KEUFFEL AND ESSER CO. NY. SLIDERULE VINTAGE | $4.99 | 09-Nov-2007 | 0 |
| 1942 K & E manual for slide rule #4081 | $3.99 | 05-Nov-2007 | 0 |
| Homestar fastrak electronic digital slide rule | $3.00 | 06-Nov-2007 | 0 |
| ANTIQUE K&E Beginners Slide Rule No. 4058 | $3.00 | 21-Nov-2007 | 0 |
| Homestar fastrak electronic digital slide rule | $3.00 | 09-Nov-2007 | 0 |
| Homestar fastrak electronic digital slide rule | $3.00 | 12-Nov-2007 | 0 |
| 1942 K & E manual for slide rule #4081 | $1.99 | 13-Nov-2007 | 0 |
| Keuffel & Esser N4041 & A. Lietz 2974N Slide R | $0.99 | 24-Nov-2007 | 0 |
| vintage KEUFFEL & ESSER slide rule with leathe | $0.99 | 05-Nov-2007 | 0 |
| Keuffel & Esser Beginner's Slide Rule N4058W w | $0.99 | 18-Nov-2007 | 0 |
| Keuffel Esser 68 1892 K12 Prep Vintage Slide R | $0.99 | 23-Nov-2007 | 0 |
| Keuffel Esser 68 1892 K12 Prep Vintage Slide R | $0.99 | 24-Nov-2007 | 0 |