| Keuffel and Esser |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Jan-2008 |
| 1890's Thacher's Calculating Slide Rule Keuffe | $2145.00 | 14-Jan-2008 | 11 |
| VINTAGE K&E 1966 ANALON SLIDE RULE WITH CASE | $585.00 | 05-Jan-2008 | 18 |
| "OLD IVORY/BONE? KEUFFEL& ESSER Co. N.Y. 6"" S | $565.55 | 21-Jan-2008 | 14 |
| K & E Thacher Calculator slide rule reproducti | $551.41 | 06-Jan-2008 | 17 |
| K&E 68-1400 ANALON Engineering Analysis Slide | $535.25 | 13-Jan-2008 | 4 |
| "Early 5"" K&E Slide Rule with Metal Indicator | $511.93 | 18-Jan-2008 | 11 |
| K&E 4082-3 Radio Engineering Problems Slide Ru | $465.86 | 03-Jan-2008 | 10 |
| Keuffel & Esser Co. Stadia Slide Rule Pat. Dat | $263.00 | 06-Jan-2008 | 8 |
| K&E 4053-3F Slide Rule - Finely Divided Keuffe | $219.50 | 03-Jan-2008 | 2 |
| K & E Thacher Calculator slide rule reproducti | $177.75 | 23-Jan-2008 | 9 |
| Webb's Stadia Cylindrical slide rule by K&E-no | $167.50 | 22-Jan-2008 | 5 |
| "20"" Keuffel & Esser Log Log Duplex DeciTrig | $160.00 | 20-Jan-2008 | 1 |
| VERY RARE KEUFFEL & ESSER SLIDE RULE DECI-LON | $157.50 | 08-Jan-2008 | 11 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $154.69 | 23-Jan-2008 | 11 |
| K&E Deci-Lon 5 Slide Rule (Very Clean) | $152.50 | 09-Jan-2008 | 11 |
| "K+E 4081-5 ** 20"" slide rule w/case, manual | $150.00 | 03-Jan-2008 | 12 |
| THREE K&E SLIDE RULES WITH LEATHER CASES MODEL | $130.06 | 05-Jan-2008 | 13 |
| HUGE COLLECTION KEUFFEL & ESSER SLIDE RULES & | $116.27 | 04-Jan-2008 | 15 |
| Keuffel & Esser Slide Rule with Leather Case! | $114.50 | 25-Jan-2008 | 10 |
| Early K&E 4088-3 Slide Rule w/ case - Unusual | $114.50 | 27-Jan-2008 | 7 |
| "Keuffel & Esser Duplex Decitrig Slide Rule, M | $113.27 | 02-Jan-2008 | 17 |
| Giant Vintage Keuffel Esser Slide Rule with Ca | $109.16 | 03-Jan-2008 | 15 |
| K&E VINTAGE SLIDE RULE 22 1/4 INCHES LONG MODE | $108.50 | 05-Jan-2008 | 10 |
| Early K&E 4092 Slide Rule w/ case - Unusual In | $100.00 | 27-Jan-2008 | 1 |
| K E Deci-Lon Slide Rule 1964 and Instruction b | $92.99 | 17-Jan-2008 | 11 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $90.00 | 03-Jan-2008 | 1 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $90.00 | 03-Jan-2008 | 1 |
| Kueffel and Esser K&E slide rule 4088-3 | $89.25 | 03-Jan-2008 | 5 |
| Big Slide Rule Slidedisk Emil Tröger Circular | $88.87 | 26-Jan-2008 | 2 |
| EARLY KEUFFEL & ESSER SLIDE RULE WITH CASE AND | $79.00 | 23-Jan-2008 | 4 |
| K+E (Keuffel & Esser) Deci-Lon Slide Rule | $78.98 | 31-Jan-2008 | 9 |
| "K+E Deci-Lon 10-Inch Slide Rule 68 1100, Case | $77.02 | 03-Jan-2008 | 14 |
| "K+E Decilon 10 *68-1100 slide rule w/case, ma | $75.00 | 11-Jan-2008 | 1 |
| K&E US Gov N4053-3SM Slide Rule - Complete w/ | $74.99 | 03-Jan-2008 | 3 |
| "K&E 22"" Slide Rule <4080-5> Pat. 2086502 Ser | $72.00 | 27-Jan-2008 | 8 |
| "Vintage Keuffel & Esser 20"" Polyphase Duplex | $71.01 | 13-Jan-2008 | 5 |
| K & E Slide Rule Magnifier with case and box | $68.00 | 17-Jan-2008 | 16 |
| Vintage Keuffel & Esser Slide Rule Leather Cas | $66.66 | 27-Jan-2008 | 9 |
| "Keuffel Esser K&E 4100 10"" Mahogany Stadia S | $66.40 | 01-Jan-2008 | 6 |
| K & E K Keuffel & Esser DECI-LON 10 Slide Rule | $63.00 | 30-Jan-2008 | 13 |
| KEUFFEL AND ESSER K & E DECI LON 12 SLIDE RULE | $58.77 | 27-Jan-2008 | 6 |
| "K&E DECI-LON 10"" SLIDE RULE and LEATHER CASE | $58.77 | 23-Jan-2008 | 4 |
| K&E RARE GREEN CELANESE CELCON SLIDE RULE MODE | $58.77 | 05-Jan-2008 | 7 |
| K & E SLIDE RULE - DECI - LON | $58.00 | 29-Jan-2008 | 8 |
| KEUFFEL ESSER 68 1210 LOG LOG DUPLEX SLIDE RUL | $57.01 | 27-Jan-2008 | 10 |
| Keuffel & Esser Log Duplex Decitrig 4081-3 Sli | $57.00 | 24-Jan-2008 | 27 |
| K+E 4181-1 Slide Rule | $56.00 | 02-Jan-2008 | 5 |
| SLIDE RULE KEUFFEL & ESSER MODEL N4080-5 w LEA | $55.55 | 02-Jan-2008 | 8 |
| "OLD KEUFFEL & ESSER SLIDE RULE, MAGNIFIER, IN | $55.00 | 23-Jan-2008 | 6 |
| "K & E, K + E Keuffel & Esser SLIDE RULE Adv C | $53.25 | 02-Jan-2008 | 9 |
| Keuffel & Esser Slide Rules 4080-3/4081-3/4100 | $52.01 | 06-Jan-2008 | 4 |
| Rare Green K&E Doric Celanese Celcon Slide Rul | $51.00 | 20-Jan-2008 | 9 |
| OLD K&E LARGE SIZE SLIDE RULE 20 1/2 INCHES N4 | $51.00 | 05-Jan-2008 | 10 |
| KEUFFEL AND ESSER K&E DECI LON 10 SLIDE RULE # | $51.00 | 12-Jan-2008 | 7 |
| Keuffel & Esser (K&E) 4181-1 Slide Rule with M | $50.12 | 20-Jan-2008 | 8 |
| 1961 K & E Deci-Lon Slide Rule 68 1100 | $50.00 | 27-Jan-2008 | 9 |
| "Keuffel Esser K&E 68 1210 Decitrig slide rule | $44.00 | 08-Jan-2008 | 12 |
| KEUFFEL & ESSER SLIDE RULE MAGNIFIER 4185C w B | $42.00 | 05-Jan-2008 | 9 |
| "VINTAGE SLIDE RULE LOT,1947 K&E, 1919 GILSON | $41.00 | 01-Jan-2008 | 4 |
| K & E Slide Rule and Book | $40.99 | 09-Jan-2008 | 8 |
| KEUFFEL AND ESSER K&E DECI LON 10 SLIDE RULE # | $40.99 | 26-Jan-2008 | 7 |
| SLIDE RULES LARGE LOT OF 17 K&E STERLING GE LA | $37.76 | 28-Jan-2008 | 9 |
| K + E 4181-1 SLIDE RULE WITH CASE 1947 | $37.00 | 21-Jan-2008 | 7 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE WITH CASE 4 | $36.99 | 06-Jan-2008 | 7 |
| 1935 KEUFFEL & ESSER 470179 SLIDE RULE W GREEN | $36.96 | 06-Jan-2008 | 4 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE & CASE 1947 | $36.77 | 06-Jan-2008 | 5 |
| "K & E Slide Rule 4081-3, Case, Box, Manual,& | $36.25 | 23-Jan-2008 | 15 |
| KEUFFEL & ESSER K&E SLIDE RULE MAGNIFIER + 10W | $36.06 | 09-Jan-2008 | 5 |
| Box of K & E Slide Rule N4058! | $36.01 | 09-Jan-2008 | 8 |
| Keuffel & Esser Slide Rules 4181-1 engineering | $36.00 | 23-Jan-2008 | 5 |
| K&E 4081-3S Log Log Duplex Decitrig Slide Rule | $35.00 | 08-Jan-2008 | 12 |
| LARGE 20 INCH K & E KEUFFEL & ESSER SLIDE RULE | $35.00 | 13-Jan-2008 | 6 |
| 2 Keuffel & Esser Slide Rule Rules Bone? Leath | $34.59 | 27-Jan-2008 | 4 |
| KEUFFEL & ESSER SLIDE RULE VINTAGE 4088-2 PAT. | $33.32 | 20-Jan-2008 | 4 |
| RARE VINTAGE STERLING SILVER K & E SLIDE RULE | $33.21 | 28-Jan-2008 | 21 |
| K&E JET LOG DUPLEX DECITRIG SLIDE RULE W/MANUA | $33.00 | 03-Jan-2008 | 3 |
| Vintage Old K&E 1947 Keuffel & Esser Slide Rul | $31.00 | 28-Jan-2008 | 10 |
| 1947 Keuffel & Esser Co./ Slide Rule (MINT) | $31.00 | 16-Jan-2008 | 4 |
| VNTAGE KEUFFEL & ESSER 4181-3 SLIDE RULE W LEA | $28.02 | 06-Jan-2008 | 3 |
| Slide Rule Lot of 3 K & E in Leather Holder | $28.00 | 25-Jan-2008 | 10 |
| VINTAGE K&E SLIDE RULE 20 1/2 INCHES LONG MODE | $27.62 | 12-Jan-2008 | 6 |
| K&E SLIDE RULE # 68 1210 WITH MANUAL BOX AND S | $27.56 | 05-Jan-2008 | 6 |
| Keuffel & Esser 4081-3 Slide Rule Log Duplex D | $27.00 | 03-Jan-2008 | 10 |
| Keuffel & Esser Co Slide Rule - Leather Case G | $26.35 | 14-Jan-2008 | 5 |
| Antique Pat. June 5 1900 K & E Mannheim slide | $26.01 | 29-Jan-2008 | 4 |
| 3 VINTAGE SLIDE RULES PLUS HANDBOOK AND EXTRAS | $26.00 | 18-Jan-2008 | 4 |
| SMALL DORIC K&E 4168 AND LARGE 4081-3 SLIDE RU | $26.00 | 01-Jan-2008 | 7 |
| K & E SLIDE RULE 4053- 3S W/LEATHER CASE MANUA | $25.50 | 20-Jan-2008 | 6 |
| KEUFFEL AND ESSER K&E SLIDE RULE MODEL 4083-3 | $24.50 | 19-Jan-2008 | 4 |
| Vintage Keuffel and Esser K&E Slide Rule Indic | $24.49 | 24-Jan-2008 | 3 |
| F Post 1460 Slide Rule Versalog Keuffel & Esse | $24.26 | 20-Jan-2008 | 9 |
| 1947 KEUFFEL AND ESSER SLIDE RULE K&E MODEL 68 | $23.76 | 19-Jan-2008 | 5 |
| Keuffel Slide Rule 4053-3 Leather Case NEAR MI | $23.22 | 04-Jan-2008 | 5 |
| KEUFFEL&ESSER CO. (K&E) SLIDE RULE W/CASE--NIC | $23.00 | 06-Jan-2008 | 7 |
| Keuffel & Esser Co. Slide Rule 1947 | $22.84 | 11-Jan-2008 | 5 |
| Deci-Lon Slide Rule Instruction Manual K&E boo | $22.49 | 13-Jan-2008 | 6 |
| "VINTAGE KEUFFEL & ESSER 12.5"" SLIDE RULE w/L | $22.49 | 11-Jan-2008 | 5 |
| Keuffel & Esser Duplex Slide Rule Old Case #40 | $22.27 | 14-Jan-2008 | 6 |
| 2 VINTAGE K+E SLIDE RULES | $21.50 | 25-Jan-2008 | 4 |
| "Keuffell & Esser, Drafting, Slide Rules, Cata | $21.21 | 14-Jan-2008 | 5 |
| VINTAGE KEUFFLER & ESSER SLIDE RULE 4181-3 W/ | $21.00 | 17-Jan-2008 | 3 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE 548769 | $20.50 | 20-Jan-2008 | 4 |
| 1964 KEUFFEL AND ESSER K&E GP 12 SLIDE RULE & | $20.49 | 19-Jan-2008 | 2 |
| "KUEFFEL AND ESSER, K & E, SLIDE RULE #4181-1 | $20.49 | 24-Jan-2008 | 4 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE 4088-2 WITH | $20.49 | 31-Jan-2008 | 5 |
| "Keuffel Esser 4051 20"" Mannheim Slide Rule, | $20.00 | 18-Jan-2008 | 1 |
| 2 Keuffel & Esser Co Slide Rule 4080-3 & 4092- | $20.00 | 20-Jan-2008 | 2 |
| "K&E (Keuffel and Esser) 4161-1 5"" Mannheim s | $19.50 | 09-Jan-2008 | 8 |
| K&E Log Log Duplex Decitrig Slide Rule Box Cas | $19.00 | 14-Jan-2008 | 1 |
| K&E SLIDE RULE/ 68 1210 LOG LOG DUPLEX DECITRI | $18.50 | 19-Jan-2008 | 8 |
| VINTAGE K&E SLIDE RULE MODEL # 4181-3 | $18.49 | 12-Jan-2008 | 4 |
| K & E SLIDE RULE WITH CASE & MANUAL N4081-3 | $18.46 | 13-Jan-2008 | 4 |
| Paragon K&E Eugene Dietzgen Slide Rule Triangl | $18.16 | 06-Jan-2008 | 6 |
| Slide Rule By Keuffel & Esser co. with case !! | $18.15 | 14-Jan-2008 | 7 |
| K+E SLIDE RULE N4083-3 ORIG.BOX AND SLEEVE MAN | $17.61 | 23-Jan-2008 | 3 |
| K & E K&E Keuffel & Esser 4088-3 1908 Slide Ru | $17.50 | 03-Jan-2008 | 6 |
| Vintage KEUFFEL & ESSER Slide Rule K & E..Engi | $17.50 | 09-Jan-2008 | 2 |
| "K&E Slide Rule 8"" N4133 Side Ruler/Wire Gaug | $16.49 | 27-Jan-2008 | 3 |
| 1932 Kueffel & Esser Slide Rule 4097-B Box & C | $15.99 | 23-Jan-2008 | 1 |
| "K & E Slide Rules book very good condition, v | $15.51 | 29-Jan-2008 | 6 |
| Keuffel & Esser 4181-3 Duplex Decitrig Slide R | $15.50 | 26-Jan-2008 | 3 |
| K & E SLIDE RULE #591205 <4088-3> EXCELLENT | $15.49 | 21-Jan-2008 | 4 |
| Keuffel & Esser Co. New York Slide Rule #4094 | $15.15 | 15-Jan-2008 | 3 |
| "Slide Rule, wood - Keuffel & Esser 1928" | $15.01 | 02-Jan-2008 | 2 |
| KEUFFEL & ESSER VINTAGE SLIDE RULE - <4801-3> | $14.99 | 14-Jan-2008 | 1 |
| Keuffel & Esser Co Slide Rule 4070-3 nice | $14.99 | 23-Jan-2008 | 1 |
| ~K+E KEUFFEL & ESSER N4081-3 1947 SLIDE RULE W | $14.61 | 15-Jan-2008 | 5 |
| Kueffel and Esser log log duplex trig slide ru | $14.27 | 10-Jan-2008 | 3 |
| "Keuffel & Esser Co. NY, Celluloid&Wood, Slide | $14.00 | 23-Jan-2008 | 2 |
| SLIDERULE K&E 1947 4081-3 LOG LOG DUPLEX DECIT | $13.50 | 12-Jan-2008 | 5 |
| 2 SLIDE RULES-K & E #692600 ; STERLING w/ I NS | $13.00 | 21-Jan-2008 | 3 |
| Vintage Keuffel & Esser Co Polyphase Duplex Sl | $12.99 | 09-Jan-2008 | 1 |
| 1947 KEUFFEL & ESSER SLIDE RULE Log Log Duplex | $12.50 | 18-Jan-2008 | 3 |
| Vintage Keuffel & Esser Co. Polyphase Duplex S | $12.50 | 17-Jan-2008 | 2 |
| Deci-Lon Slide Rule Instruction Manual K&E | $12.49 | 06-Jan-2008 | 4 |
| Slide Rule Keuffel & Esser 4081-3 Made in US | $12.27 | 30-Jan-2008 | 2 |
| "VINTAGE SLIDE RULE MANUALS>1914 DIETZGEN,K&E, | $12.27 | 03-Jan-2008 | 2 |
| KEUFFEL & ESSER LOG LOG DUPLEX TRIG SLIDE RULE | $11.61 | 11-Jan-2008 | 2 |
| VINTAGE K&E 4083-3 SLIDE RULE | $11.51 | 20-Jan-2008 | 3 |
| VINTAGE KEUFFEL ESSER SLIDE RULE 4080-3 | $11.50 | 23-Jan-2008 | 2 |
| K&E SLIDE RULE MODEL 4081-3 WITH ORIGINAL CASE | $11.50 | 07-Jan-2008 | 3 |
| Vintage K E Slide Rule 1947 | $11.50 | 10-Jan-2008 | 2 |
| Vintage K & E / Keuffel & Esser Slide Rule #40 | $11.50 | 04-Jan-2008 | 2 |
| "Doric K&E slide rulers, with case" | $11.49 | 30-Jan-2008 | 3 |
| Keuffel & Esser Co SLIDE RULE Model 4054 Polyp | $11.38 | 29-Jan-2008 | 2 |
| Vintage Slide Rule Keuffel & Esser Co USA Slid | $11.37 | 26-Jan-2008 | 3 |
| K + E Slide Rules - Deci-Lon An Instruction Ma | $11.01 | 19-Jan-2008 | 6 |
| K&E SLIDE RULE with Case 4053-3 Keuffel & Esse | $10.99 | 20-Jan-2008 | 2 |
| Keuffel & Esser Pocket Slide Rule #4093-3 W/Ca | $10.99 | 03-Jan-2008 | 2 |
| K & E SLIDE RULE # N4053-3 DATED 1900 KEUFFEL | $10.50 | 21-Jan-2008 | 2 |
| vintage 1955 K&E Slide Rule Manual Log Duplex | $10.50 | 26-Jan-2008 | 4 |
| 1947 No. 4081 Slide Rule Manual Book KEUFFEL & | $10.50 | 15-Jan-2008 | 2 |
| Vintage Keuffel & Esser Slide Rule and Case | $10.49 | 20-Jan-2008 | 2 |
| K&E KEUFFEL & ESSER Slide Rule K&E Slide Rules | $10.49 | 12-Jan-2008 | 2 |
| "11 Slide Rules K+E, Post, Lietz Good Conditio | $10.00 | 22-Jan-2008 | 1 |
| Keuffel & Esser Co. Copyright 1947 Slide Rule | $10.00 | 10-Jan-2008 | 1 |
| LOG LOG DUPLEX DECITRIG (slide rule) KEUFFEL & | $10.00 | 27-Jan-2008 | 2 |
| "K & E Slide Rules, A Self Instruction Manual | $10.00 | 24-Jan-2008 | 3 |
| VINTAGE K&E SLIDE RULE W/ CASE 1964 | $9.99 | 20-Jan-2008 | 1 |
| 1943 Slide Rule Manual K & E Keuffel & Esser N | $9.99 | 19-Jan-2008 | 1 |
| Keuffel & Esser Slide Rules 4080-3 engineering | $9.99 | 15-Jan-2008 | 2 |
| RARE OHIO STATE SLIDE RULE MANUAL K E K&E 4071 | $9.99 | 13-Jan-2008 | 1 |
| "KEUFFEL & ESSER SLIDE RULE NO.4097 C ,WITH BO | $9.99 | 10-Jan-2008 | 1 |
| "vintage slide rule 4092-3, K&E w/case,keuffel | $9.99 | 27-Jan-2008 | 2 |
| *****4 K&E Slide Rule Manuals****** | $9.99 | 24-Jan-2008 | 1 |
| VINTAGE SLIDE RULE KEUFFEL & ESSER | $9.99 | 09-Jan-2008 | 1 |
| Keuffel & Esser 4081-3 Slide Rule Log Duplex D | $9.99 | 24-Jan-2008 | 1 |
| "THREE K&E SLIDE RULES MODEL# 4053-3, DIFFEREN | $9.99 | 19-Jan-2008 | 1 |
| Keuffel & Esser Slide Rules engineering scienc | $9.99 | 23-Jan-2008 | 1 |
| VINTAGE KEUFFEL & ESSER CO. WOOD SLIDE RULE N4 | $9.99 | 02-Jan-2008 | 1 |
| Vintage K & E Duplex 10 Inch Log SLIDE Rule Ma | $9.99 | 27-Jan-2008 | 1 |
| K & E BEGINNER'S SLIDE RULE 4058C DIETZGEN FRE | $9.99 | 07-Jan-2008 | 1 |
| KEUFFEL & ESSER CO SLIDE RULE IN LEATHER CASE | $9.99 | 04-Jan-2008 | 1 |
| BEGINNER SLIDE RULE - KEUFFEL AND ESSER - IN C | $9.99 | 15-Jan-2008 | 1 |
| Kueffel & Esser Slide Rule Model 4161-1 | $9.99 | 27-Jan-2008 | 1 |
| Vintage K & E N4058W Slide Rule Case & Instruc | $9.99 | 19-Jan-2008 | 1 |
| SLIDE RULE lot 2 K&E 1 Sterling w cases 4081 m | $9.99 | 29-Jan-2008 | 1 |
| "VINTAGE KEUFFEL & ESSER SLIDE RULE, N4053-3 W | $9.99 | 27-Jan-2008 | 1 |
| 4081-3 Keuffel & Esser K & E Slide Rule w/ Cas | $9.99 | 05-Jan-2008 | 2 |
| KEUFFEL & ESSER LOG LOG TRIG DUPLEX SLIDE RULE | $9.95 | 28-Jan-2008 | 1 |
| KEUFFEL & ESSER POLYPHASE DUPLEX SLIDE RULE | $9.95 | 28-Jan-2008 | 1 |
| "Keuffel & Esser Log Duplex Slide Rule Manual, | $9.95 | 09-Jan-2008 | 2 |
| "K+E Slide Rules, Deci-Lon Instruction Manual, | $9.95 | 08-Jan-2008 | 1 |
| "Keuffel & Esser 1932 Slide Rule, Case, and Ma | $9.95 | 21-Jan-2008 | 1 |
| 1939 K & E Log Log Duplex Trig Slide Rule Manu | $9.95 | 16-Jan-2008 | 2 |
| KUEFFEL and ESSER K&E SLIDE RULE 4088-3 WITH C | $9.95 | 14-Jan-2008 | 1 |
| 1947 K&E N4081-3 Log Log Duplex Decitrig Slide | $9.95 | 23-Jan-2008 | 1 |
| Keuffel & Esser Co. #4055 Slide Rule & Box Pat | $9.95 | 31-Jan-2008 | 1 |
| K&E Slide Rule N4081-3 (Log Log Duplex Decitri | $9.90 | 19-Jan-2008 | 6 |
| KEUFFEL & ESSER SLIDE RULE DATED PRE 1950 Rese | $9.56 | 26-Jan-2008 | 8 |
| KEUFFEL & ESSER CO. N.Y SLIDE RULE (4088-3) & | $9.50 | 27-Jan-2008 | 4 |
| Keuffel & Esser 4081-3 LOG LOG Decitrig Slide | $9.50 | 09-Jan-2008 | 2 |
| VINTAGE KEUFFEL & ESSER 4088-3 SLIDE RULE WITH | $9.49 | 28-Jan-2008 | 3 |
| KEUFFEL & ESSER SLIDE RULE IN CASE | $9.49 | 13-Jan-2008 | 2 |
| Keuffel & Esser Slide Rule | $9.49 | 23-Jan-2008 | 1 |
| K&E Keuffel & Esser Co N4081 Slide Rule Manual | $9.44 | 03-Jan-2008 | 1 |
| VINTAGE K & E SLIDE RULE 4092-3 | $9.38 | 27-Jan-2008 | 2 |
| Keuffel & Esser Co. Log Log Duplex Decitrig Sl | $9.00 | 14-Jan-2008 | 3 |
| "Vintage Keuffel & Esser Mannheim Slide Rule,M | $8.99 | 18-Jan-2008 | 1 |
| Vintage K + E Slide Rule & Case | $8.32 | 12-Jan-2008 | 1 |
| K&E Keuffel & Esser Slide Rule Manual 4031 to | $7.99 | 16-Jan-2008 | 1 |
| "K & E Slide Rule Lot 4053-3 #401, N4053-3 #29 | $7.99 | 22-Jan-2008 | 2 |
| Keuffel & Esser Slide Rule-Vintage | $7.99 | 28-Jan-2008 | 2 |
| 1947 K & E Log Log Duplex Decitrig Slide Rule/ | $7.50 | 26-Jan-2008 | 2 |
| K+E SLIDE RULE 4058-C BEGINNERS WITH CASE | $7.50 | 21-Jan-2008 | 1 |
| 2 OLD SLIDE RULE RULES A W FABER & KEUFFEL & E | $7.10 | 12-Jan-2008 | 2 |
| 1954 Slide Rule Manual #682063 By K & E Mint | $7.00 | 29-Jan-2008 | 3 |
| K&E SLIDE RULES DECI-LON INSTRUCTION MANUAL-19 | $7.00 | 03-Jan-2008 | 2 |
| 1939 K & E 4070 Polyphase Duplex Trig Slide Ru | $6.99 | 10-Jan-2008 | 2 |
| K&E 4081 SLIDE RULE MANUAL 1939 LOG LOG DUPLEX | $6.99 | 10-Jan-2008 | 2 |
| K&E SLIDE RULE w/ Case N 4053 3 Keuffel & Esse | $6.50 | 28-Jan-2008 | 2 |
| Keuffel & Esser Doric 9068 Slide Rule Pat. Pen | $6.49 | 31-Jan-2008 | 2 |
| KEUFFEL & ESSER BEGINNER'S SLIDE RULE in CASE | $5.99 | 01-Jan-2008 | 1 |
| K & E Slide Rule Manual Log Log Duplex Decitri | $5.99 | 15-Jan-2008 | 2 |
| KEUFFEL & ESSER SLIDE RULE 4092-3 w/case | $5.99 | 14-Jan-2008 | 1 |
| ANTIQUE OAK IVORY KEUFFEL &ESSER SLIDE RULE &C | $5.99 | 31-Jan-2008 | 1 |
| Vintage Keuffel & Esser Slide Rule | $5.95 | 23-Jan-2008 | 1 |
| "VINTAGE KEUFFER & ESSER CO. 20"" SLIDE RULE W | $5.50 | 20-Jan-2008 | 5 |
| "Antique Keuffel & Esser 12"" slide rule w/cas | $5.50 | 18-Jan-2008 | 3 |
| 1966 K & E LEARN TO USE A SLIDE RULE EFFECTIVE | $5.50 | 01-Jan-2008 | 1 |
| "K & E 6"" Slide Rule 4097D with Sheath, Box & | $5.50 | 10-Jan-2008 | 2 |
| K&E KEUFFEL ESSER 4081-3 SLIDE RULE LOG | $5.00 | 23-Jan-2008 | 1 |
| 4 Slide Rules + Old Slide Rule Text Book K&E + | $5.00 | 22-Jan-2008 | 1 |
| Antique Keuffel & Esser Mannheim Slide Rule Bo | $4.99 | 26-Jan-2008 | 1 |
| Vintage Keuffel & Esser Beginner's Slide Rule | $4.99 | 26-Jan-2008 | 1 |
| Vtg Keuffel & Esser Slide Rule US 4053-3 Leath | $4.99 | 06-Jan-2008 | 1 |
| K&E Keuffel & Esser Co N4081 Slide Rule Manual | $4.44 | 18-Jan-2008 | 1 |
| KEUFFEL & ESSER CO. K & E SLIDE RULE No. 4053- | $4.25 | 07-Jan-2008 | 2 |
| 1961 Keuffel & Esser K&E K12 Prep Slide Rule + | $3.99 | 05-Jan-2008 | 1 |
| VINTAGE K&E KEUFFEL & ESSER SLIDE RULE No N405 | $3.99 | 14-Jan-2008 | 1 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $3.95 | 23-Jan-2008 | 1 |
| VINTAGE SLIDE RULER~LEATHER CASE~KEUFFEL A ESS | $3.82 | 24-Jan-2008 | 2 |
| Vintage Keuffel & Esser Slide Rule | $3.75 | 09-Jan-2008 | 1 |
| Keuffel & Esser SLIDE RULER #4081-3 Log Duplex | $3.20 | 21-Jan-2008 | 4 |
| KEUFFEL & ESSER CO. K-12 PREP SLIDE RULE | $1.99 | 23-Jan-2008 | 1 |
| Vintage Keuffel & Esser Co. Slide Rule - N4081 | $1.99 | 06-Jan-2008 | 1 |
| K & E Sliderule | $1.47 | 22-Jan-2008 | 2 |
| Keuffel and Esser 4153-1 slide rule and case | $0.99 | 22-Jan-2008 | 1 |
| Keuffel & Esser Co. - Beginner's Slide Rule - | $0.99 | 17-Jan-2008 | 1 |
| Vintage Keuffel Esser Slide Rule and case. | $0.99 | 13-Jan-2008 | 1 |
| 1930's Vintage Slide Rule - K&E brand - EXCELL | $0.99 | 23-Jan-2008 | 1 |
| Unknown Slide Rule Keuffel & Esser (?) | $0.99 | 12-Jan-2008 | 1 |
| Keuffel&Esser Co. N.Y. Slide Rule (vintage) | $0.99 | 28-Jan-2008 | 1 |
| Keuffel Esser 4081-3 Slide Rule and Case well | $0.99 | 19-Jan-2008 | 1 |
| Keuffel Esser 4088-3 Slide Rule and Case well | $0.99 | 12-Jan-2008 | 1 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $0.99 | 01-Jan-2008 | 1 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE W/ CASE | $0.99 | 08-Jan-2008 | 1 |
| K&E 1947 Sliderule 4081-3 Log Log Duplex Decit | $0.99 | 21-Jan-2008 | 1 |
| VINTAGE BEGINNERS SLIDE RULE KEUFFEL & ESSER C | $0.99 | 26-Jan-2008 | 2 |
| Vintage Slide Rule Manual Keuffel & Esser (194 | $0.99 | 05-Jan-2008 | 1 |
| Rare K & E 4013 Thacher's Slide Rule w/ Magnif | $3200.00 | 06-Jan-2008 | 0 |
| K&E 4053-3F Slide Rule - Finely Divided Keuffe | $234.99 | 23-Jan-2008 | 0 |
| K&E 4041F Slide Rule - Finely Divided - Rare E | $222.22 | 23-Jan-2008 | 0 |
| K+E Associated Spring Corp - Washer Computor S | $189.99 | 23-Jan-2008 | 0 |
| K&E 4139 Cooke Radio Slide Rule w/ Manual - Ni | $159.99 | 03-Jan-2008 | 0 |
| Big Slide Rule Slidedisk Emil Tröger Circular | $139.00 | 06-Jan-2008 | 0 |
| K&E 4139 Cooke Radio Slide Rule w/ Manual - Ni | $119.99 | 23-Jan-2008 | 0 |
| "Vintage Keuffel & Esser Co. K.S. Slide Rule 1 | $99.99 | 13-Jan-2008 | 0 |
| "K&E DECI-LON 10"" SLIDE RULE and LEATHER CASE | $89.99 | 03-Jan-2008 | 0 |
| "Vintage Keuffel & Esser Co. K.S. Slide Rule 1 | $89.99 | 27-Jan-2008 | 0 |
| Big Slide Rule Slidedisk Emil Tröger Circular | $79.00 | 13-Jan-2008 | 0 |
| "K+E Decilon 10 *68-1100 slide rule w/case, ma | $75.00 | 03-Jan-2008 | 0 |
| Vernor's Keuffel & Esser Slide Rule | $49.99 | 14-Jan-2008 | 0 |
| Vernor's Keuffel & Esser Slide Rule | $49.99 | 22-Jan-2008 | 0 |
| 1940's VINTAGE K&E SLIDE RULE 4081-3S WITH CAS | $40.00 | 01-Jan-2008 | 0 |
| K&E 4058 D Slide Rule - Rare - Only in 1942 Ca | $29.99 | 03-Jan-2008 | 0 |
| "KEUFFEL & ESSER COMPANY SLIDE RULE w/ LEATHER | $25.00 | 26-Jan-2008 | 0 |
| VINTAGE K & E SLIDE RULE 4070-3 #7 | $24.99 | 26-Jan-2008 | 0 |
| VINTAGE K & E BEGINNER'S SLIDE RULE 4058C #3 | $24.99 | 26-Jan-2008 | 0 |
| VINTAGE 1908 K & E SLIDE RULE 4092 #6 | $24.99 | 26-Jan-2008 | 0 |
| "Vintage K + E SLIDE RULE w/original box, NR" | $24.99 | 23-Jan-2008 | 0 |
| "Vintage K + E SLIDE RULE w/original box, NR" | $24.99 | 03-Jan-2008 | 0 |
| VINTAGE K & E SLIDE RULE 4081-3 LOG DUPLEX DEC | $24.99 | 26-Jan-2008 | 0 |
| VINTAGE K & E SLIDE RULE 4080-3 LOG LOG DUPLEX | $24.99 | 26-Jan-2008 | 0 |
| VINTAGE K & E SLIDE RULE 4080-3 LOG LOG DUPLEX | $24.99 | 26-Jan-2008 | 0 |
| Slide Rule w/ Case Box and Book K&E N4080-3 | $24.95 | 30-Jan-2008 | 0 |
| Keuffel & Esser Slide Rule with Manual and Lea | $24.95 | 03-Jan-2008 | 0 |
| Vintage Kueffel and Esser GP12 Slide Rule w/ c | $20.00 | 21-Jan-2008 | 0 |
| 3 VINTAGE SLIDE RULES PLUS HANDBOOK AND EXTRAS | $19.95 | 03-Jan-2008 | 0 |
| "Keuffel & Esser vintage 50""s ? Slide Ruler" | $19.95 | 31-Jan-2008 | 0 |
| Vintage Keuffel & Esser Slide Rule With Case C | $18.50 | 24-Jan-2008 | 0 |
| VINTAGE IVORY KEUFFEL ESSER 1900 NO 3088-3 SLI | $15.95 | 26-Jan-2008 | 0 |
| 1925 Keuffel & Esser Co. Polyphase Slide Rule | $15.00 | 21-Jan-2008 | 0 |
| K+E 4053-2 Slide Rule | $15.00 | 02-Jan-2008 | 0 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE | $13.95 | 27-Jan-2008 | 0 |
| KEUFFEL & ESSER SLIDE RULE [4080-3S] J.H.FULCH | $11.11 | 26-Jan-2008 | 0 |
| Keuffel & Esser K&E 4055 Slide Rule with box | $10.00 | 05-Jan-2008 | 0 |
| Keuffel & Esser vintage Slide Rule Manual N408 | $9.99 | 20-Jan-2008 | 0 |
| 1924 K & E Polyphase Duplex Slide Rule Manual | $9.99 | 20-Jan-2008 | 0 |
| RARE OHIO STATE SLIDE RULE MANUAL 1947+ K&E 40 | $9.99 | 06-Jan-2008 | 0 |
| *****3 K&E Slide Rule Manuals****** | $9.99 | 24-Jan-2008 | 0 |
| Keuffel & Esser Doric 9068 Slide Rule Pat. Pen | $9.99 | 24-Jan-2008 | 0 |
| OIL FIELD CONSTRUCTION CO. KEUFFEL & ESSER SLI | $9.99 | 06-Jan-2008 | 0 |
| Vintage Keuffel Esser Slide Rule Leather Case | $9.99 | 09-Jan-2008 | 0 |
| 10 INCH K & E KEUFFEL & ESSER SLIDE RULE < 408 | $9.99 | 13-Jan-2008 | 0 |
| KEUFFEL & ESSER VINTAGE BEGINNERS SLIDE RULE 4 | $9.99 | 21-Jan-2008 | 0 |
| Antique Pat. June 5 1900 K & E Mannheim slide | $9.99 | 22-Jan-2008 | 0 |
| ANTIQUE KEUFFEL &ESSER SLIDE RULE &CASE 4053-3 | $9.99 | 05-Jan-2008 | 0 |
| "VINTAGE KEUFFEL AND ESSER CO. N,Y. SLIDE RULE | $9.99 | 14-Jan-2008 | 0 |
| *VINTAGE KEUFFEL & ESSER CO. SLIDE RULE # 5143 | $9.99 | 27-Jan-2008 | 0 |
| K&E Nestler Lahr celuoloid & wood slide rule p | $9.99 | 11-Jan-2008 | 0 |
| Vintage Keuffel & esser slide rule 4080-3 w/ca | $9.99 | 13-Jan-2008 | 0 |
| KEUFFEL & ESSER VINTAGE BEGINNERS SLIDE RULE 4 | $9.99 | 28-Jan-2008 | 0 |
| Keuffel & Esser K&E SLIDE RULE No. 4092-3 with | $9.99 | 28-Jan-2008 | 0 |
| K&E KEUFFEL ESSER 4081-3 SLIDE RULE LOG | $9.99 | 14-Jan-2008 | 0 |
| Old Slide Ruler K&E Merchant's | $9.99 | 30-Jan-2008 | 0 |
| "Vintage K & E ""Favorite"" Slide Rule W/ Case | $9.99 | 23-Jan-2008 | 0 |
| K & E SLIDE RULE WITH CASE & MANUAL N4081-3 | $9.99 | 03-Jan-2008 | 0 |
| Keuffel And Esser Co. Polyphase Vintage Slide | $9.99 | 18-Jan-2008 | 0 |
| "THE MANNHEIM, KEUFFEL & ESSER SLIDE RULE, INS | $9.99 | 23-Jan-2008 | 0 |
| Antique Vintage KEUFFEL & ESSER CO SLIDE RULE | $9.99 | 30-Jan-2008 | 0 |
| "Keuffel & Esser Beginner's Slide Rule, 4058W, | $9.99 | 30-Jan-2008 | 0 |
| Vintage Keuffel & Esser Co. NY Slide Rule Rule | $9.99 | 31-Jan-2008 | 0 |
| KEUFFEL & ESSER K& E reversible slide rule #40 | $9.99 | 08-Jan-2008 | 0 |
| NEAT 1908 4088-3 KEUFFEL & ESSER CO. SLIDE RUL | $9.99 | 19-Jan-2008 | 0 |
| Vintage Keuffel & Esser Co. Slide Rule + box | $9.99 | 23-Jan-2008 | 0 |
| VINTAGE KEUFFEL & ESSER CO. Slide Rule | $9.99 | 31-Jan-2008 | 0 |
| "Keuffel & Esser 1932 Slide Rule, Case, and Ma | $9.95 | 08-Jan-2008 | 0 |
| KEUFFEL & ESSER SLIDE RULE #68 1617 CASE | $9.95 | 23-Jan-2008 | 0 |
| THE K&E MANNHEIM SLIDE RULE instruction manual | $9.95 | 01-Jan-2008 | 0 |
| 1955 K & E Slide Rule Manuel Log Log Duplex De | $9.95 | 28-Jan-2008 | 0 |
| KEUFFEL & ESSER SLIDE RULE MANUAL NO.4081 DECI | $9.88 | 22-Jan-2008 | 0 |
| 4058 Keuffel & Esser Co. N.Y. Slide Ruler | $8.99 | 17-Jan-2008 | 0 |
| KEUFFEL & ESSER K&E 4058 W SLIDE RULE W LEATHE | $8.50 | 06-Jan-2008 | 0 |
| ANTIQUE KEUFFEL & ESSER NY SLIDE RULE PAT JUNE | $7.99 | 02-Jan-2008 | 0 |
| KEUFFEL & ESSER WOODEN BEGINNERS SLIDE RULE - | $7.99 | 31-Jan-2008 | 0 |
| Vintage K & E Log Log Duplex Slide Rule Manual | $7.99 | 01-Jan-2008 | 0 |
| K & E SLIDE RULE MANUAL GREEN N4081 keuffel & | $7.99 | 20-Jan-2008 | 0 |
| 4058 Keuffel & Esser Co. N.Y. Slide Ruler | $6.99 | 23-Jan-2008 | 0 |
| VINTAGE KEUFFEL & ESSER CO. SLIDE RULE | $6.99 | 15-Jan-2008 | 0 |
| #4058 KEUFFEL & ESSER STUDENT'S SLIDE RULE W/ | $6.99 | 15-Jan-2008 | 0 |
| KEUFFEL & ESSER CO. N.Y. SLIDE RULE / LEATHER | $6.50 | 26-Jan-2008 | 0 |
| Keuffel & Esser Co. Begineer's Slide Rule 4058 | $6.00 | 20-Jan-2008 | 0 |
| Old K & E Beginners Slide Rule | $5.99 | 20-Jan-2008 | 0 |
| Vintage 1947 Keuffel & Esser Co. Slide Rule w/ | $5.99 | 09-Jan-2008 | 0 |
| K & E Slide Rule Manual No#4081 - 1955 | $5.99 | 21-Jan-2008 | 0 |
| Vintage Keuffel & Esser Slide Rule in Case | $5.99 | 26-Jan-2008 | 0 |
| 1932 KEUFFEL & ESSER Log Log Duplex SLIDE RULE | $5.99 | 14-Jan-2008 | 0 |
| KEUFFEL & ESSER CO. #601811 SLIDE RULE WITH CA | $5.95 | 08-Jan-2008 | 0 |
| 1947 Keuffel & Esser Co. Slide Rule Manual No. | $5.00 | 20-Jan-2008 | 0 |
| 1947 Keuffel & Esser Co. Slide Rule Manual No. | $5.00 | 31-Jan-2008 | 0 |
| 10 INCH K & E KEUFFEL & ESSER SLIDE RULE < 408 | $5.00 | 20-Jan-2008 | 0 |
| Keuffel & Esser Co. slide rule - excellent con | $5.00 | 25-Jan-2008 | 0 |
| Mannheim Slide Rule Manual K & E 1932 | $4.99 | 06-Jan-2008 | 0 |
| *****2 K&E Slide Rule Manuals****** | $4.99 | 24-Jan-2008 | 0 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE MANUAL 1939 | $4.99 | 26-Jan-2008 | 0 |
| KEUFFEL & ESSER CO. N.Y SLIDE RULE (4088-3) & | $4.99 | 13-Jan-2008 | 0 |
| 1925 Keuffel & Esser Slide Rule Manual | $4.99 | 03-Jan-2008 | 0 |
| THE K&E MANNHEIM SLIDE RULE instruction manual | $4.95 | 23-Jan-2008 | 0 |
| SLIDE RULE MANUAL KEUFFEL & ESSER CO. #4070 | $4.50 | 14-Jan-2008 | 0 |
| Keuffel & Esser Co. Begineer's Slide Rule 4058 | $4.00 | 31-Jan-2008 | 0 |
| Lawrence Quick and Easy Slide Rule w Instructi | $3.99 | 17-Jan-2008 | 0 |
| Lawrence Quick and Easy Slide Rule w Instructi | $3.99 | 03-Jan-2008 | 0 |
| 1939 K & E KEUFFEL & ESSER SLIDE RULE 4071 MAN | $3.50 | 01-Jan-2008 | 0 |
| Pat'd 1939 Keuffel & Esser No. 4056 Slide Rule | $3.50 | 19-Jan-2008 | 0 |
| "K + E # 4161 Slide Rule Manual, 1952" | $3.00 | 13-Jan-2008 | 0 |
| "K + E # 4161 Slide Rule Manual, 1952" | $3.00 | 20-Jan-2008 | 0 |
| K&E KEUFFEL AND ESSER 4058 W SLIDE RULE AND CA | $2.00 | 15-Jan-2008 | 0 |
| "K & E Slide Rules, A Self Instruction Manual | $1.99 | 17-Jan-2008 | 0 |
| 1940's KEUFFEL & ESSER SLIDE RULE | $1.99 | 10-Jan-2008 | 0 |
| Keufful & Esser Co. N. Y. old beginners slide | $1.99 | 15-Jan-2008 | 0 |
| 1928 KUEFFEL & ESSER Slide Rule No. 4058 W wit | $1.99 | 16-Jan-2008 | 0 |
| K&E Log Log Duplex Decitrig Slide Rule 4081 Ma | $1.99 | 03-Jan-2008 | 0 |
| Mannheim Slide Rule Manual K & E 1932 | $1.99 | 13-Jan-2008 | 0 |
| "Keuffel, Esser 4080-3 Slide Rule" | $1.00 | 16-Jan-2008 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $0.99 | 08-Jan-2008 | 0 |
| Slide Rule by Keuffel & Esser Co N.Y. | $0.99 | 06-Jan-2008 | 0 |
| KUEFFEL AND ESSER BEGINNERS WOODEN SLIDE RULE | $0.99 | 20-Jan-2008 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $0.99 | 30-Jan-2008 | 0 |
| KEUFFEL & ESSER K&E 4058 W SLIDE RULE W LEATHE | $0.99 | 14-Jan-2008 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $0.99 | 22-Jan-2008 | 0 |
| Keuffel & Esser Slide Rule | $0.99 | 27-Jan-2008 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $0.99 | 15-Jan-2008 | 0 |
| CASE for a K & E GP 12 (Model 68 1565) Slide R | $0.99 | 12-Jan-2008 | 0 |
| THREE SLIDE RULES ACU-MATE KEUFFEL ESSER STERL | $0.49 | 20-Jan-2008 | 0 |
| Wooden Slide Rule Vintage Kueffel And Esser Co | $0.09 | 29-Jan-2008 | 0 |