| Keuffel and Esser |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Mar-2007 |
| K&E Cox Duplex Slide Rule Pat.1891 | $200.00 | 18-Mar-2007 | 12 |
| "20"" K&E 68 1200 Log Log Duplex Decitrig Slid | $200.00 | 25-Mar-2007 | 2 |
| "20"" K&E N4081-5 Log Log Duplex Decitrig Slid | $200.00 | 25-Mar-2007 | 1 |
| "20"" K&E N4053-5 Log Log Duplex Decitrig Slid | $200.00 | 26-Mar-2007 | 1 |
| K&E VECTOR OR LOG LOG DUPLEX DECITRIG SLIDE RU | $191.50 | 04-Mar-2007 | 6 |
| "2 Slide Rules Keuffel&Esser one rare 22"" oth | $190.00 | 02-Mar-2007 | 7 |
| K+E Deci-Lon 5 68-1130 slide rule w/case +docu | $175.00 | 02-Mar-2007 | 2 |
| K+E Deci-Lon 68-1955 Overhead Projector Slide | $152.50 | 07-Mar-2007 | 13 |
| "Keuffel & Esser Co. 22 1/4"" Slide Rule N4083 | $138.38 | 11-Mar-2007 | 13 |
| "22"" & 12 1/2"" K & Esser slide rules PLUS bo | $126.00 | 22-Mar-2007 | 11 |
| OLD but NEW K&E DECILON POCKET 26 scl SLIDE RU | $118.18 | 11-Mar-2007 | 13 |
| Keuffel & Esser 7 Foot Slide Rule Polyphase 68 | $105.05 | 21-Mar-2007 | 6 |
| K+E Decilon 10 68-1100 slide rule w/case + ext | $104.75 | 16-Mar-2007 | 3 |
| K & E Log Log Duplex Decitrig Slide Rule and c | $104.50 | 25-Mar-2007 | 7 |
| KEUFFEL AND ESSER KISSAM STADIA SLIDE RULE. 10 | $102.50 | 18-Mar-2007 | 4 |
| K&E Log Log Duplex Vector Slide Rule N4083-3 w | $86.00 | 11-Mar-2007 | 12 |
| Old K&E Polyphase Slide Rule NEW 68-1643 Keuff | $85.00 | 18-Mar-2007 | 2 |
| KEUFFEL & ESSER SLIDE RULER 4081-5S 22 INCHES | $80.59 | 29-Mar-2007 | 12 |
| Keuffel and Esser Kissam STADIA SLIDE RULE 10' | $80.10 | 29-Mar-2007 | 3 |
| "Vintage Slide Rule, Keuffel & Esser, 10 inch" | $79.87 | 25-Mar-2007 | 5 |
| K&E Slide Rule Magnifier # 68 2233 Made in USA | $77.58 | 15-Mar-2007 | 8 |
| Keuffel Esser Slide Rule W/Box & Instruction B | $76.70 | 10-Mar-2007 | 7 |
| VINTAGE THINK ELECTRIC CONCISE CIRCULAR SLIDE | $76.00 | 24-Mar-2007 | 1 |
| K&E #10DECI-LON 68-1100 SLIDE RULE with CASE E | $76.00 | 04-Mar-2007 | 15 |
| Keuffel & Esser 4185D Slide Rule Magnifier in | $75.00 | 05-Mar-2007 | 8 |
| Keuffel & Esser Co. Slide Rule | $74.58 | 27-Mar-2007 | 5 |
| Kueffel & Esser Slide Rule | $71.00 | 12-Mar-2007 | 14 |
| VINTAGE KEUFFEL & ESSER COOKE RADIO SLIDE RULE | $70.00 | 04-Mar-2007 | 10 |
| Vintage slide rule w/ case and manual K & E De | $66.00 | 19-Mar-2007 | 4 |
| Old Bruning Drafting Machine w/ 2 scales K+E s | $66.00 | 08-Mar-2007 | 13 |
| K & E Decilon Slide Rule w case | $65.00 | 27-Mar-2007 | 7 |
| K&E Geophysics Geophysical Slide Rule | $58.97 | 17-Mar-2007 | 10 |
| "Keuffel&Esser Sliderule, Model N4053-5, Slide | $58.88 | 02-Mar-2007 | 12 |
| 10 DECI-LON Slide Rule and Case Keuffel & Esse | $57.00 | 25-Mar-2007 | 4 |
| K&E DECI-LON Slide Rule Excellent with case NI | $55.55 | 22-Mar-2007 | 4 |
| K & E Slide Rule Magnifier in Original Box 68 | $55.00 | 18-Mar-2007 | 3 |
| KEUFFEL & ESSER K+E DECI-LON 10 SLIDE RULE W C | $52.89 | 01-Mar-2007 | 9 |
| Kueffel & Esser Deci-Lon Slide Rule | $51.00 | 26-Mar-2007 | 7 |
| Two Nice K&E Slide Rules plus Two Engineer Tri | $51.00 | 31-Mar-2007 | 13 |
| Vintage Slide Rule & Case Keuffel & Esser 1961 | $51.00 | 15-Mar-2007 | 5 |
| K&E K+E N 4139 Cooke Radio Slide Rule w/ Case | $51.00 | 11-Mar-2007 | 5 |
| KEUFFEL & ESSER K&E DECI-LON 10 SLIDE RULE WIT | $51.00 | 31-Mar-2007 | 3 |
| "ANTIQUE K & E KEUFFEL & ESSER 4053-5 SLIDE RU | $49.99 | 21-Mar-2007 | 1 |
| K & E Slide Rule Magnifier KE MIB #4185D K&E N | $49.25 | 09-Mar-2007 | 9 |
| "K&E, KEUFFEL & ESSER SLIDE RULE, PRE 1922, AN | $48.99 | 16-Mar-2007 | 4 |
| "Keuffel & Esser, K&E, 4081-3 Slide Rule in Ca | $48.49 | 02-Mar-2007 | 13 |
| K & E 4181-3 Slide Rule with Box Case Manual 1 | $47.00 | 13-Mar-2007 | 11 |
| Keuffel & Esser K&E 6 Inch Log Log Slide Rule | $46.66 | 18-Mar-2007 | 15 |
| Keuffel&Esser Co. Slide Rule with original Cas | $46.55 | 08-Mar-2007 | 6 |
| Keuffel & Esser Slide rule model 68-1100 w/ ca | $46.05 | 03-Mar-2007 | 8 |
| K&E KEUFFEL & ESSER LOG LOG DUPLEX DECITRIG SL | $46.00 | 07-Mar-2007 | 5 |
| "Keuffel & Esser K+E 68-1100 Deci-Lon Slide Ru | $45.00 | 04-Mar-2007 | 5 |
| K&E Slide Rule Deci-Lon Model 68-1100~ Case~Bo | $43.00 | 01-Mar-2007 | 6 |
| "Vintage K & E Slide Rule Original Box, Case & | $42.25 | 16-Mar-2007 | 5 |
| "Keuffel & Esser 4058 C Slide Rule, box & Inst | $42.11 | 25-Mar-2007 | 3 |
| Keuffel & Esser K&E 68 1100 Deci-Lon 10 Slide | $41.44 | 11-Mar-2007 | 7 |
| K&E Keuffel and Esser Co 4081-3 Slide Rule ~ M | $41.00 | 25-Mar-2007 | 3 |
| Vintage 10 K&E 4181-3 Log Log Duplex slide rul | $40.00 | 27-Mar-2007 | 6 |
| K&E KEUFFEL & ESSER 4181-1 Pocket Slide Rule | $39.99 | 26-Mar-2007 | 1 |
| NICE Vintage slide rule magnifier by the K & E | $38.00 | 25-Mar-2007 | 3 |
| MIB Vintage Keuffel & Esser Slide Rule w/ Case | $37.00 | 08-Mar-2007 | 6 |
| K&E K+E 4088-3 Duplex Polyphase Slide Rule | $37.00 | 11-Mar-2007 | 8 |
| Antique Keuffel & Esser Slide Rule Old Tool Pa | $36.89 | 18-Mar-2007 | 6 |
| KEUFFEL & ESSER CO N.Y. Slide Rule <4083-3> Ve | $36.67 | 11-Mar-2007 | 3 |
| Keuffel & Esser Co 4081-3 Slide Rule with Case | $36.36 | 20-Mar-2007 | 4 |
| K&E Keuffel & Esser Picker X-Ray Pelvic Head S | $36.00 | 26-Mar-2007 | 7 |
| "~~ 1947 K&E 4181-1 Slide Rule, Original Case, | $36.00 | 25-Mar-2007 | 2 |
| "K+E 4181-1 Log Log Duplex DeciTrig 5"" Slide | $36.00 | 11-Mar-2007 | 8 |
| Old K+E Keuffel & Esser 4081-3 Slide Rule +Lea | $36.00 | 25-Mar-2007 | 5 |
| keuffel esser slide rules lot of 3 with cases | $36.00 | 12-Mar-2007 | 7 |
| 5 VINTAGE KEUFFEL & ESSER SLIDE RULES | $36.00 | 16-Mar-2007 | 3 |
| Keuffel & Esser Co. Slide Rule 4081 & 4083 Man | $35.00 | 04-Mar-2007 | 5 |
| "K&E K+E SLIDE RULE MAGNIFIER, 1946 PATENT, FO | $34.00 | 23-Mar-2007 | 4 |
| KEUFFEL & ESSER K&E COOKE RADIO SLIDE RULE 413 | $33.50 | 04-Mar-2007 | 4 |
| Rare Vintage Kueffel & Esser Slide Rule w/ Sta | $33.00 | 30-Mar-2007 | 4 |
| Keuffel & Esser K & E 4091-3 slide rule w/case | $32.00 | 18-Mar-2007 | 7 |
| K&E 68 2224 Slide Rule Magnifier w/box Minty | $31.99 | 29-Mar-2007 | 5 |
| Vintage Keuffel Esser Slide Rule 4092-3 W/ Cas | $31.00 | 16-Mar-2007 | 11 |
| K&E K+E Magnifying Cursor in Box (Slide Rule?) | $31.00 | 11-Mar-2007 | 8 |
| Keuffel Esser Slide Rule in Case & Box 4081-3 | $30.01 | 14-Mar-2007 | 6 |
| Keuffel & Esser Co.Slide Rule # 4181-1 1947 | $30.00 | 06-Mar-2007 | 10 |
| "3 Slide Rule, (2) K&E Keuffel & Esser Co. (1) | $30.00 | 21-Mar-2007 | 5 |
| "20"" K&E N4081-5 Log Log Duplex Decitrig Slid | $29.99 | 30-Mar-2007 | 4 |
| "20"" K&E N4053-5 Log Log Duplex Decitrig Slid | $29.99 | 30-Mar-2007 | 2 |
| 1947 KEUFFEL ESSER SLIDE RULE RULER LOG DUPLEX | $29.95 | 20-Mar-2007 | 1 |
| Keuffel & Esser Vintage Slide Rule | $29.95 | 21-Mar-2007 | 1 |
| Keuffel and Esser Log Log Duplex Vector Slide | $29.77 | 25-Mar-2007 | 4 |
| Keuffel & Esser K&E 4083-3 log log vector slid | $29.50 | 18-Mar-2007 | 5 |
| "KEUFFEL & ESSER #4081 SLIDE RULE, CASE, AND M | $28.77 | 18-Mar-2007 | 7 |
| K&E Slide Rule DECI-LON Instruction Manual 196 | $27.98 | 10-Mar-2007 | 4 |
| "K&E Slide Rule,4081-3 With Leather Case.NR." | $27.49 | 13-Mar-2007 | 5 |
| LOT Keuffel & Esser Slide Rule 4071 + 4081 Cas | $27.00 | 13-Mar-2007 | 3 |
| Keuffel & Esser Co. N.Y. Pat. June 5. 1900 Sli | $26.99 | 01-Mar-2007 | 4 |
| Keuffel & Esser CO K & E Slide Rule #4081-3 w/ | $26.51 | 05-Mar-2007 | 7 |
| Original Manual for K+E Decilon 10 slide rules | $26.50 | 16-Mar-2007 | 2 |
| "K+E 4168C 9068 Doric Pocket Slide Rule,Case,M | $26.50 | 11-Mar-2007 | 4 |
| Keuffel & Esser 4081-3 Log Duplex Decitrig Sli | $26.01 | 19-Mar-2007 | 9 |
| Keuffel & Esser Slide Rule | $26.00 | 03-Mar-2007 | 9 |
| "Vintage Keuffel & Esser Co. 4053-S Slide Rule | $26.00 | 03-Mar-2007 | 7 |
| VINTAGE 1908 Slide Rule W Leather Case Keuffel | $26.00 | 25-Mar-2007 | 2 |
| "Keuffel & Esser slide rule, model 4092-3, cir | $26.00 | 30-Mar-2007 | 22 |
| "LARGE Keuffel & Esser Walnut Slide Rule 21 3/ | $26.00 | 18-Mar-2007 | 2 |
| 3 Slide Rule (s) Post 1441 & 1452 Keuffel & Es | $26.00 | 25-Mar-2007 | 7 |
| 5 MORE VINTAGE KEUFFEL & ESSER SLIDE RULES | $25.49 | 16-Mar-2007 | 2 |
| Vintage KEUFFEL & ESSER K & E Slide Rule N4081 | $25.02 | 25-Mar-2007 | 5 |
| Keuffel Esser.Slide Rule Manual.Log Log Duplex | $25.02 | 11-Mar-2007 | 15 |
| "ANTIQUE K & E KEUFFEL & ESSER 4088-3 SLIDE RU | $24.99 | 27-Mar-2007 | 1 |
| Vintage Keuffel & Esser Slide Rule - Dtd 1915 | $24.99 | 25-Mar-2007 | 1 |
| "~~ 1947 K&E 4181-1 Slide Rule, Original Case, | $24.99 | 19-Mar-2007 | 9 |
| KEUFFEL ESSER 1924 SLIDE RULE W/LEATHER CASE I | $24.95 | 10-Mar-2007 | 1 |
| K & E 4181-1 Slide Rule | $24.49 | 15-Mar-2007 | 4 |
| Vintage Keuffel & Esser Company Slide Rule - C | $24.00 | 03-Mar-2007 | 10 |
| Keuffel & Esser Old Sliderule & Case Princeton | $24.00 | 07-Mar-2007 | 1 |
| K & E Slide Rule # 68 1210 | $23.51 | 03-Mar-2007 | 9 |
| K&E Slide Rule Log Log Duplex Decitrig c1947 | $23.51 | 01-Mar-2007 | 4 |
| 3 Vintage Wood Slide Rule K&E 4053 4054 4088 L | $23.50 | 04-Mar-2007 | 6 |
| VINTAGE KEUFFEL ESSER 4053 -3 SLIDE RULE W/LEA | $23.39 | 04-Mar-2007 | 3 |
| 1962 K&E SLIDE RULE DECI LON INSTRUCTION MANUA | $23.27 | 04-Mar-2007 | 5 |
| K & E Merchants slide rule w/ box & leather ca | $22.08 | 16-Mar-2007 | 7 |
| K & E Slide Rule 4053-3 +GREEN Leather CASE & | $22.00 | 07-Mar-2007 | 3 |
| Keuffel & Esser Vintage Slide Rule 4081-3 Slid | $21.50 | 25-Mar-2007 | 5 |
| LOT OF POCKET SLIDE RULES KEUFFEL & ESSER EVER | $21.49 | 06-Mar-2007 | 5 |
| Keuffel & Esser Slide Rule 4081-3 in case +box | $21.01 | 09-Mar-2007 | 7 |
| Keuffel & Esser Co Slide Rule N4081-3 & Case | $21.00 | 31-Mar-2007 | 1 |
| "K&E 4080-3 Slide Rule, Case, Instructions & B | $20.60 | 03-Mar-2007 | 6 |
| K&E KEUFFEL & ESSER LOG LOG DUPLEX DECITRIG SL | $20.59 | 12-Mar-2007 | 6 |
| K&E Log Log Slide Rule with Case | $20.50 | 30-Mar-2007 | 5 |
| 4053-3 KEUFFEL & ESSER 1900s SLIDE RULE LEATHE | $20.50 | 29-Mar-2007 | 3 |
| "Keuffel & Esser Co., K&E, 4081-3 Vintage Slid | $20.50 | 10-Mar-2007 | 2 |
| "VINTAGE ""KEUFFEL & ESSER"" SLIDE RULE #31434 | $20.50 | 03-Mar-2007 | 5 |
| 12 inch long K+E slide rule with leather case | $20.50 | 10-Mar-2007 | 7 |
| Vintage Keuffel & Esser Slide Rule ch | $20.50 | 28-Mar-2007 | 6 |
| KEUFFEL & ESSER Slide Ruler 4081-3S | $20.50 | 12-Mar-2007 | 5 |
| K & E Slide Rule INDICATOR in Original Box 68 | $20.50 | 18-Mar-2007 | 2 |
| "K&E Log Log Duplex Trig Slide Rule, No. N4080 | $20.50 | 12-Mar-2007 | 6 |
| KEUFFEL & ESSER 4081-3 SLIDE RULE DECITRIG & C | $20.49 | 02-Mar-2007 | 2 |
| K&E K+E 4097 B Pocket Ever-There Slide Rule & | $20.18 | 11-Mar-2007 | 3 |
| 2 KEUFFEL & ESSEL Slide Rules Models 4054 & 40 | $20.00 | 24-Mar-2007 | 1 |
| Slide Ruler & leather case <4080-3> Keuffel & | $19.99 | 11-Mar-2007 | 1 |
| K&E Slide Rule Model 4083-3 & Leather Case | $19.99 | 01-Mar-2007 | 1 |
| 1947 K&E Slide Rule | $19.49 | 21-Mar-2007 | 6 |
| VINTAGE K&E EVER-THERE SLIDE RULE no. 4097D | $18.50 | 17-Mar-2007 | 4 |
| Dec. 22.'08 KEUFFEL & ESSER CO. SLIDE RULE AND | $18.37 | 04-Mar-2007 | 4 |
| 6 inch K&E Slide Rule Pocket Sized! | $18.19 | 15-Mar-2007 | 10 |
| KEUFFEL &ESSER CO NY SLIDE RULE AND LEATHER CA | $17.74 | 25-Mar-2007 | 4 |
| ANTIQUE KEUFFEL & ESSER SLIDE RULE PAT.1900 & | $17.50 | 30-Mar-2007 | 1 |
| Keuffel & Esser 4058 C Slide Rule w/Case (K-E | $17.50 | 04-Mar-2007 | 10 |
| "Old KEUFFEL&ESSER Paragon Slide Rule,Deci-Lon | $17.50 | 15-Mar-2007 | 5 |
| Vintage Slide Rule Drafting Tools Keuffel & Es | $16.83 | 11-Mar-2007 | 6 |
| 1962 Ad DECI-LON Slide Rule Keuffel & Esser Co | $16.50 | 27-Mar-2007 | 2 |
| K&E K+E N 4053-3 Polyphase Slide Rule w/ Case | $16.50 | 11-Mar-2007 | 5 |
| K&E K+E 4054 Favorite Mannheim Slide Rule & Ca | $16.50 | 11-Mar-2007 | 2 |
| Keuffel Esser radio slide rule in orig. leathe | $16.49 | 04-Mar-2007 | 3 |
| OLD 1916 KEUFFEL & ESSER STUDENT'S 4048 SLIDE | $16.37 | 04-Mar-2007 | 2 |
| Keuffel & Esser K&E GP12 Plastic Slide Rule | $16.27 | 04-Mar-2007 | 4 |
| KEUFFEL & ESSER K & E SLIDE RULE < 4053-2> PAT | $16.07 | 04-Mar-2007 | 2 |
| K&E K+E 4056 Favorite Mannheim Slide Rule & Ca | $16.00 | 11-Mar-2007 | 4 |
| Vintage K&E 68 1617 Slide Rule (New Cond) | $16.00 | 16-Mar-2007 | 7 |
| K&E K+E 4161-1 Pocket Slide Rule & Case/Sheath | $16.00 | 11-Mar-2007 | 3 |
| VINTAGE ~ K&E ~ SLIDE RULE ~ W/CASE ~ ANTIQUE | $16.00 | 26-Mar-2007 | 4 |
| K&E K+E 4081-3 Log Duplex DeciTrig Slide Rule | $15.99 | 11-Mar-2007 | 3 |
| Keuffel & Esser Co. Slide Rule in Leather Hold | $15.99 | 04-Mar-2007 | 3 |
| K&E Magnifier Attachment for Engineering Slide | $15.95 | 21-Mar-2007 | 6 |
| Keuffel & Esser Slide Rule Ruler 4090-3 With C | $15.61 | 08-Mar-2007 | 3 |
| "VINTAGE CIRCA 1938 ""K & E"" POLYPHASE SLIDE | $15.50 | 16-Mar-2007 | 2 |
| ANTIQUE KEUFFEL&ESSER CO. BEGIN 4058W SLIDE RU | $15.50 | 25-Mar-2007 | 2 |
| LOG LOG Keuffel & Esser Co SLIDE RULE 21 Scale | $15.50 | 23-Mar-2007 | 3 |
| MAHOGANY KEUFFEL & ESSER SLIDE RULE & CASE #40 | $15.50 | 17-Mar-2007 | 4 |
| K & E Duplex Slide Rule Leather Case | $15.50 | 20-Mar-2007 | 2 |
| K+E Doric Slide Rule--Leather--Info--USA--Just | $15.50 | 18-Mar-2007 | 4 |
| Vintage slide rule lot Keuffel&Esser Lafayette | $15.50 | 13-Mar-2007 | 2 |
| Vintage KEUFFEL & ESSER DECI-LON SLIDE RULE MA | $15.27 | 17-Mar-2007 | 5 |
| K & E SLIDE RULE MANUAL KEUFFEL AND ESSER CO. | $15.00 | 25-Mar-2007 | 4 |
| 1947 Keuffel & Esser Model 4801-3 Slide Rule a | $15.00 | 10-Mar-2007 | 4 |
| 1908 K & E POLYPHASE DUPLEX SLIDE RULE MODEL 4 | $14.99 | 31-Mar-2007 | 1 |
| VINTAGE KEUFFEL & ESSER CO SLIDE RULE 4071-3 V | $14.99 | 18-Mar-2007 | 1 |
| 2 Vintage K & E Slide Rules 4058 W Beginners D | $14.99 | 27-Mar-2007 | 1 |
| 2 slide rules Keuffel & Esser and Post # 1447 | $14.99 | 28-Mar-2007 | 1 |
| Vintage K&E Log Log Duplex N4081-3 Slide rule | $14.61 | 15-Mar-2007 | 2 |
| Keuffel & Esser Pocket Slide Rule with Case & | $14.09 | 04-Mar-2007 | 3 |
| 2 Vintage Slide Rules Keuffel & Esser 4081-3 & | $13.99 | 30-Mar-2007 | 6 |
| Vintage Keuffell & Esser 4054 Polyphase Slide | $13.95 | 13-Mar-2007 | 1 |
| K&E slide rule (4081-3) and K&E flexible curve | $13.95 | 31-Mar-2007 | 5 |
| Vintage K & E Slide Rule 4092-3 with Leather C | $13.87 | 10-Mar-2007 | 5 |
| K&E K+E N4081-3 Log Duplex DeciTrig Slide Rule | $13.78 | 11-Mar-2007 | 5 |
| 20s K&E 12 Polyphase Duplex SLIDE-RULE w/Leath | $13.50 | 25-Mar-2007 | 2 |
| K&E K+E 4150-1 Pocket Slide Rule & Case/Sheath | $13.50 | 11-Mar-2007 | 2 |
| K&E K+E 4080-3 Log Duplex DeciTrig Slide Rule | $13.27 | 11-Mar-2007 | 3 |
| Keuffel & Esser Co. N.Y. Pat. June 5 1900 Slid | $13.10 | 11-Mar-2007 | 2 |
| VINTAGE THINK ELECTRIC CONCISE CIRCULAR SLIDE | $13.00 | 28-Mar-2007 | 5 |
| "Keuffel & Esser Slide Rule w Case, Vintage K& | $13.00 | 29-Mar-2007 | 8 |
| Keuffel & Esser Slide Rule and book | $12.50 | 30-Mar-2007 | 4 |
| K&E K+E 4097-C Pocket Slide Rule & Case/Sheath | $12.50 | 11-Mar-2007 | 2 |
| "slide rule tie clasp, Vintage. K&E ? ruler" | $12.50 | 17-Mar-2007 | 3 |
| lot of slide rules Keuffel & esser + speed cal | $12.50 | 04-Mar-2007 | 4 |
| Lot 5 Slide Rules K & E Acu-Math Post Pedigree | $12.27 | 02-Mar-2007 | 3 |
| 2 K & E Keuffel & Esser Co. Slide Rule Manuals | $12.00 | 20-Mar-2007 | 1 |
| VINTAGE KEUFFEL & ESSER SLIDE RULER W/ LEATHER | $12.00 | 16-Mar-2007 | 1 |
| Vintage K & E Slide Ruler Model 4081-3 with Ca | $11.61 | 06-Mar-2007 | 2 |
| KEUFFEL & ESSER LOG LOG DUPLEX SLIDE RULE WCAS | $11.60 | 07-Mar-2007 | 5 |
| Keuffel & Esser Slide Rule and Gramercy Drafti | $11.50 | 04-Mar-2007 | 5 |
| Vintage 1940s Keuffel Esser Slide Ruler #4083- | $11.50 | 04-Mar-2007 | 2 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE WITH CASE | $11.50 | 04-Mar-2007 | 3 |
| 1962 K + E DECI-LON SLIDE RULE MANUAL - GOOD C | $11.50 | 21-Mar-2007 | 5 |
| Keuffel & Esser Vintage Slide Rule | $11.01 | 25-Mar-2007 | 4 |
| K&E 4181-3 LOG LOG DUPLEX SLIDE RULE + CASE + | $11.00 | 07-Mar-2007 | 4 |
| Vintage Keuffel & Esser Slide Rule #4053-3 Exc | $11.00 | 24-Mar-2007 | 2 |
| Keuffel & Esser 4081-3 Slide Rule-C 1947-Leath | $10.51 | 25-Mar-2007 | 2 |
| "KEUFFEL & ESSER < 4097 C > 6"" SLIDE RULE & C | $10.50 | 28-Mar-2007 | 3 |
| 1947 Keuffel & Esser Slide Rule N4080-3 Trigon | $10.50 | 08-Mar-2007 | 2 |
| Vintage KEUFFEL & ESSER 4092-3 Slide Rule Leat | $10.50 | 21-Mar-2007 | 2 |
| Vintage Keuffel & Esser Pocket Slide Rule 4097 | $10.50 | 21-Mar-2007 | 5 |
| Vintage N9081-3 K&E Keuffel & Esser Slide Rule | $10.50 | 13-Mar-2007 | 2 |
| VINTAGE ~ K&E ~ SLIDE RULE ~ W/CASE ~ ANTIQUE | $10.49 | 24-Mar-2007 | 4 |
| "2 SLIDE RULES & BOOK, KUEFFEL&ESSER, ACU-MATH | $10.49 | 23-Mar-2007 | 2 |
| VINTAGE SLIDE RULE BY KEUFFEL & ESSER CO. NY W | $10.49 | 23-Mar-2007 | 3 |
| "Keuffel & Esser Co., K&E, 4081-3 Vintage Slid | $10.49 | 23-Mar-2007 | 2 |
| Keuffel & Esser Co. Slide Rule Leather Case-Or | $10.00 | 26-Mar-2007 | 1 |
| Keuffel & Esser Slide Rule and Case | $10.00 | 24-Mar-2007 | 1 |
| "SLIDE RULE K&E STANARD 12"" LOG LOG DECI-TRIG | $10.00 | 12-Mar-2007 | 1 |
| Keuffel & Esser Company New York Slide Rule | $10.00 | 18-Mar-2007 | 1 |
| Slide Rule Keuffel & Esser Doric Copy Right 19 | $10.00 | 02-Mar-2007 | 9 |
| "Keuffel Esser 4053-3 Slide Rule Pat June 5, 1 | $9.99 | 09-Mar-2007 | 1 |
| Vintage Penn State Issue Keuffel & Esser Slide | $9.99 | 11-Mar-2007 | 1 |
| K & E Favororite Mark Slide Rule 4055 | $9.99 | 25-Mar-2007 | 1 |
| 1947 Keuffel&Esser/KE Log Log Duplex Slide Rul | $9.99 | 06-Mar-2007 | 1 |
| KEUFFEL & ESSER #4058 Beginner's Slide Rule - | $9.99 | 07-Mar-2007 | 1 |
| Keuffel & Esser Slide Rule - Vintage 1900 - #4 | $9.99 | 19-Mar-2007 | 1 |
| Keuffel & Esser K&E 4080-3 Mahogany Slide Rule | $9.99 | 11-Mar-2007 | 2 |
| LOT VINTAGE SLIDE RULE K&E Keuffel & Esser & C | $9.99 | 27-Mar-2007 | 1 |
| Vintage Keuffel & Esser Slide Rule N4080-3 Dat | $9.99 | 06-Mar-2007 | 1 |
| K&E K+E 4081-3 Log Duplex DeciTrig Slide Rule | $9.99 | 11-Mar-2007 | 2 |
| K&E K+E 4081-3 Log Duplex DeciTrig Slide Rule | $9.99 | 11-Mar-2007 | 1 |
| Vintage KEUFFEL & ESSER Slide Rule | $9.99 | 14-Mar-2007 | 2 |
| 3 Slide Rules K&E Two Manuals Log Log Duplex V | $9.99 | 11-Mar-2007 | 2 |
| Keuffel & Esser Model N4041 Slide Rule + Extra | $9.99 | 08-Mar-2007 | 1 |
| K&E K+E 4088-3 Duplex Polyphase Slide Rule & C | $9.99 | 11-Mar-2007 | 1 |
| K&E K+E 4095-3 Duplex Merchants Slide Rule & C | $9.99 | 11-Mar-2007 | 1 |
| K&ESLIDERULE 748 K & E SLIDE RULE 4181-3 Keuff | $9.99 | 25-Mar-2007 | 1 |
| K&E K+E 4150-1 Pocket Slide Rule & Case/Sheath | $9.99 | 11-Mar-2007 | 1 |
| K&E Beginner's Slide Rule 4058C w/ Instruction | $9.99 | 14-Mar-2007 | 2 |
| "1934 KEUFFEL+ ESSER, K&E, SLIDE RULE: 4080-3 | $9.99 | 27-Mar-2007 | 1 |
| KEUFFEL & ESSER K&E 4081-3 SLIDE RULE DECITRIG | $9.99 | 11-Mar-2007 | 1 |
| KEUFFEL & ESSER N 4053-3 SLIDE RULE WITH CASE | $9.99 | 06-Mar-2007 | 1 |
| Antique Slide Rule Keuffel & Esser Co. | $9.99 | 04-Mar-2007 | 1 |
| "Keuffel & Esser Co., K&E, 4053-3 Vintage Slid | $9.99 | 23-Mar-2007 | 1 |
| KUEFFEL & ESSER SLIDE RULE 4056 VINTAGE NO RES | $9.99 | 02-Mar-2007 | 2 |
| KEUFFEL & ESSER Vintage Slide Rule Model 4070- | $9.99 | 02-Mar-2007 | 1 |
| Vintage Keuffel & Esser Co. Slide Rule & Sheat | $9.99 | 17-Mar-2007 | 1 |
| K & E KEUFFEL & ESSER SLIDE RULE W/CASE MODEL | $9.99 | 26-Mar-2007 | 1 |
| Antique Keuffel & Esser 1915 Wooden Slide Rule | $9.95 | 21-Mar-2007 | 1 |
| Keuffel & Esser Co. N.Y. Pat. June 5. 1900 Sli | $9.95 | 26-Mar-2007 | 1 |
| 3 SLIDE RULES 2 K&Es & 1 ACU-MATH & K&E SCRIBE | $9.50 | 25-Mar-2007 | 8 |
| "SLIDE RULE,log log Decitrig KEUFFEL & ESSER,W | $9.50 | 25-Mar-2007 | 2 |
| "K & E Slide Rule, Old Model 4092-3" | $9.50 | 10-Mar-2007 | 4 |
| K E Slide Rule | $9.39 | 06-Mar-2007 | 3 |
| Keuffel Esser K&E Log Log Duplex Decitric slid | $9.00 | 18-Mar-2007 | 3 |
| K&E Co Keuffel Esser slide rule # 4058D rules | $8.99 | 20-Mar-2007 | 1 |
| 4053-3 K & E KEUFFEL AND ESSER SLIDE RULE | $8.99 | 05-Mar-2007 | 1 |
| VINTAGE K & E SLIDE RULE 4080-3 with LEATHER C | $8.99 | 04-Mar-2007 | 1 |
| Vintage Slide Rule & Case Keuffel & Esser 4299 | $8.99 | 11-Mar-2007 | 1 |
| slide rule book K&E Mannheim and Polyphase Sli | $8.95 | 07-Mar-2007 | 1 |
| Manual only for Keuffel & Esser Slide Rule N40 | $8.76 | 08-Mar-2007 | 6 |
| Keuffel & Esser Beginner's Wood Slide Rule 405 | $8.50 | 25-Mar-2007 | 4 |
| "Slide Rule Keuffel & Esser Pat June 5 1900, 4 | $8.07 | 02-Mar-2007 | 4 |
| K & E SLIDE RULE WITH CASE - MARKED EK-3 | $8.00 | 21-Mar-2007 | 3 |
| Keuffel & Esser 4054 Slide Rule in Original Ca | $7.99 | 18-Mar-2007 | 1 |
| Vintage Wooden Keuffel & Esser Slide Rule In B | $7.99 | 31-Mar-2007 | 1 |
| "K&E Doric 6"" 4150-1 Slide Rule with Case" | $7.77 | 25-Mar-2007 | 2 |
| Antique K & E Keuffel & Esser Slide Rule Orign | $7.50 | 12-Mar-2007 | 3 |
| VINTAGE KEUFFEL & ESSER CO SLIDE RULE w/ CASE | $7.50 | 24-Mar-2007 | 1 |
| VINTAGE KEUFFEL & ESSER K E SLIDE RULE N4508W | $7.50 | 10-Mar-2007 | 5 |
| Keuffel Esser Slide Rule in Case 4081-3 K&E | $7.49 | 23-Mar-2007 | 4 |
| K + E Slide Rules Instruction Manual Deci-Lon | $7.00 | 11-Mar-2007 | 2 |
| 2 Keuffel & Esser slide rules N4053-3 & 4053 | $6.99 | 18-Mar-2007 | 1 |
| "KEUFFEL & ESSER SLIDE RULE & COWHIDE CASE, 19 | $6.61 | 17-Mar-2007 | 6 |
| "Slide Rule Keuffel & Esser 4053-3 11 in, Pat | $6.61 | 02-Mar-2007 | 2 |
| Slide Rule from the 50's K & E. Slip stick | $6.00 | 23-Mar-2007 | 1 |
| VINT K&E SLIDE RULE W/LEATHER BELT LOOP CASE-- | $6.00 | 23-Mar-2007 | 2 |
| 4 Slide Rule Repair Lot 3 K&E Keuffel Esser w/ | $5.99 | 20-Mar-2007 | 1 |
| K & E Log Duplex Decitrig Slide Rule Manual #N | $5.95 | 18-Mar-2007 | 1 |
| Keuffel & Esser 1947 4081-3 Duplex Decitrig Sl | $5.95 | 11-Mar-2007 | 1 |
| VINTAGE Keuffel & Esser 4071-3 Slide Rule Bamb | $5.50 | 19-Mar-2007 | 3 |
| Slide Rule Keuffel 7 Esser Polyphase Duplex 12 | $5.50 | 02-Mar-2007 | 3 |
| VINTAGE KEUFFEL & ESSER BEGINNER'S SLIDE RULE | $5.50 | 18-Mar-2007 | 2 |
| Keuffel Esser Slide Rule Ruler 4081-3 | $5.50 | 03-Mar-2007 | 4 |
| Vintage K E LOG LOG DUPLEX VECTOR SLIDE RULE | $5.24 | 16-Mar-2007 | 2 |
| K+E Slide Rules Self Manuel By Lyman M. Kells | $5.24 | 20-Mar-2007 | 2 |
| -Nice- 1900 -Keuffel & Esser- Slide Rule w/Cas | $5.24 | 22-Mar-2007 | 2 |
| K & E Log Leg Decitrig Slide Rule Booklet Leat | $5.24 | 30-Mar-2007 | 3 |
| K + E Manual Log Log Duplex Decitrig Slide Rul | $5.24 | 20-Mar-2007 | 2 |
| 2 K & E Keuffel & Esser Co. Slide Rule Manuals | $5.20 | 26-Mar-2007 | 2 |
| Keuffel and Esser Ivory Slide Rule in Leather | $5.00 | 20-Mar-2007 | 1 |
| "K&E 4055 10"" Mannheim Slide Rule NR" | $5.00 | 26-Mar-2007 | 1 |
| KEUFFEL & ESSER SLIDE RULE 4083-3 | $5.00 | 18-Mar-2007 | 1 |
| "Keuffel & Esser N4053-3 Slide Rule, with Leat | $4.99 | 09-Mar-2007 | 1 |
| "Keuffel & Esser N4080-3 Slide Rule, with Leat | $4.99 | 09-Mar-2007 | 1 |
| K & E K-12 PREP SLIDE RULE | $4.99 | 18-Mar-2007 | 1 |
| K & E K-12 PREP SLIDE RULE *Very Nice* | $4.99 | 26-Mar-2007 | 1 |
| KEUFFEL & ESSER BEGINNERS SLIDE RULE N4058W IN | $4.99 | 07-Mar-2007 | 1 |
| VINTAGE K & E SLIDE RULE IN CASE- 4058W-NO RES | $4.99 | 20-Mar-2007 | 1 |
| Sun Hemmi slide rule with box case and K & E m | $4.99 | 17-Mar-2007 | 1 |
| VINTAGE SLIDE RULE KEUFFEL & ESSER | $4.99 | 08-Mar-2007 | 1 |
| Keuffel & Essel Beginner's Slide Rule | $4.99 | 11-Mar-2007 | 1 |
| Antique Slide Rule Keuffel&Esser Co New York | $4.81 | 07-Mar-2007 | 3 |
| VINTAGE K&E KEUFFEL & ESSER BEGINNER'S SLIDE R | $4.50 | 05-Mar-2007 | 1 |
| Vintage Keuffel Esser Model 4094 Slide Rule | $4.25 | 08-Mar-2007 | 4 |
| 2 SLIDE RULES & BOOK / STAEDTLER - KEUFFEL & E | $4.00 | 05-Mar-2007 | 1 |
| Vintage K&E Slide Rule Manual LOG LOG DUPLEX D | $4.00 | 04-Mar-2007 | 3 |
| Keuffel & Esser Slide Rule Manual No. 68 2047 | $4.00 | 28-Mar-2007 | 1 |
| The Log Log Duplex Slide Rule Keuffel & Esser | $3.99 | 03-Mar-2007 | 1 |
| VINTAGE K&E MANNHEIM SLIDE RULE 4041 AND CASE | $3.99 | 22-Mar-2007 | 1 |
| Keuffel & Esser Slide Rule Instruction Booklet | $3.99 | 20-Mar-2007 | 1 |
| Kueffel Esser Slide Rule Manual Antique Scient | $3.00 | 13-Mar-2007 | 1 |
| LOG DUPLEX SLIDE RULE MANUAL 4081 KEUFFEL & ES | $3.00 | 25-Mar-2007 | 1 |
| Slide Rule Manual Keuffel & Esser 68 2047 | $3.00 | 24-Mar-2007 | 1 |
| Log Log Decitrig Slide Rule Keuffel & Esser Co | $2.99 | 03-Mar-2007 | 1 |
| KEUFFEL & ESSER Wooden Beginners Slide Rule No | $2.50 | 23-Mar-2007 | 1 |
| Old K & E Slide Rule Kueffel Esser co. NY #408 | $2.50 | 14-Mar-2007 | 1 |
| Vintage K & E beginners slide rule | $2.24 | 07-Mar-2007 | 2 |
| "Vintage Slide Rule Manual, Keuffel & Esser, c | $2.00 | 28-Mar-2007 | 2 |
| Vintage K&E Slide Rule Manual #68 2063 | $1.99 | 14-Mar-2007 | 1 |
| KEUFFEL & ESSER 4031 MINI SLIDE RULE Pat. 1900 | $0.99 | 30-Mar-2007 | 1 |
| K&E Slide Rule and book | $0.99 | 25-Mar-2007 | 1 |
| Polyphase Slide Rule K&E 4053-3 Keuffel & Esse | $0.99 | 12-Mar-2007 | 1 |
| K&E Log Log Decitrig Slide Rule Manual - 68 20 | $0.99 | 18-Mar-2007 | 1 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $99.99 | 05-Mar-2007 | 0 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $99.99 | 09-Mar-2007 | 0 |
| "K+E Decilon 10 68-1100 slide rule w/case, man | $99.99 | 02-Mar-2007 | 0 |
| "ANTIQUE K & E KEUFFEL & ESSER 4053-5 SLIDE RU | $99.99 | 11-Mar-2007 | 0 |
| K & E LOG LOG Duplex Decitrig SLIDE RULE with | $90.00 | 21-Mar-2007 | 0 |
| Keuffel & Esser K&E 68 1100 Deci-Lon 10 Slide | $48.00 | 25-Mar-2007 | 0 |
| Engineering K + E Slide Rule 1950's in leather | $40.00 | 30-Mar-2007 | 0 |
| 4092-3 KEUFFEL AND ESSER SLIDE RULER MINT. L@@ | $29.95 | 21-Mar-2007 | 0 |
| 1956 slide rule K&E with Blonde Leather Case | $25.00 | 01-Mar-2007 | 0 |
| VINTAGE Keuffel & Esser 4071-3 Slide Rule Bamb | $24.99 | 02-Mar-2007 | 0 |
| Vintage Keuffel and Esser Log.Slide Rule #4092 | $24.99 | 21-Mar-2007 | 0 |
| KEUFFEL & ESSER No. 4088-2 SLIDE RULE ~ 1908 | $24.99 | 29-Mar-2007 | 0 |
| VINTAGE SLIDE RULE W/CASE KEUFFEL & ESSER K&E | $19.99 | 25-Mar-2007 | 0 |
| Vintage Keuffel & Esser Slide Rule K E Slide R | $19.99 | 15-Mar-2007 | 0 |
| VINTAGE SLIDE RULE W/CASE KEUFFEL & ESSER K&E | $19.99 | 09-Mar-2007 | 0 |
| VINTAGE SLIDE RULE W/CASE KEUFFEL & ESSER K&E | $19.99 | 16-Mar-2007 | 0 |
| LOT Keuffel & Esser Slide Rule 4071 + 4081 Cas | $19.99 | 03-Mar-2007 | 0 |
| Kueffel & Esser Slide Rule 4053-3 W/Box Excell | $19.99 | 26-Mar-2007 | 0 |
| KEUFFEL & ESSER K-12 Prep Slide Rule In Case | $19.95 | 11-Mar-2007 | 0 |
| VINTAGE KEUFFEL & ESSER CO SLIDE RULE w/ CASE | $19.00 | 17-Mar-2007 | 0 |
| Keuffel & Esser CO. 1924 Slide Rule With Leath | $15.99 | 11-Mar-2007 | 0 |
| vintage old slide rule keuffel + esser 1930's | $15.99 | 31-Mar-2007 | 0 |
| Vintage K & E Polyphase N4053-3 Slide Rule Dra | $14.99 | 27-Mar-2007 | 0 |
| VINTAGE KEUFFEL & ESSER CO. SLIDE RULE 4058-C | $14.99 | 25-Mar-2007 | 0 |
| US Patent Prints Keuffel K&E Slide Rule - Full | $14.95 | 29-Mar-2007 | 0 |
| KEUFFEL $ ESSER SLIDE RULE | $14.95 | 15-Mar-2007 | 0 |
| Vintage K&E Log Log Duplex 4081-3 Slide rule N | $13.95 | 15-Mar-2007 | 0 |
| "K&E SLIDERULE, TACRO DRAFTING TOOLS, & RAPIDE | $12.99 | 02-Mar-2007 | 0 |
| Very Old K & E N4053-3 Wood Slide Rule With Ha | $10.95 | 21-Mar-2007 | 0 |
| "Keuffel & Esser Co., Log Duplex Slide Rule, c | $9.99 | 18-Mar-2007 | 0 |
| K & E KEUFFEL & ESSER SLIDE RULE W/CASE MODEL | $9.99 | 13-Mar-2007 | 0 |
| ANTIQUE K&E 4088 POLYPHASE DUPLEX SLIDE RULE W | $9.99 | 13-Mar-2007 | 0 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE w/ LEATHER | $9.99 | 21-Mar-2007 | 0 |
| '38 POLYPHASE #N 4053 KEUFFEL & ESSER SLIDE RU | $9.99 | 06-Mar-2007 | 0 |
| Keuffel & Esser Doric Slide Rule no. N9081-3 w | $9.99 | 03-Mar-2007 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $9.99 | 04-Mar-2007 | 0 |
| VINTAGE Keuffel & Esser Slide Rule | $9.99 | 04-Mar-2007 | 0 |
| Keuffel & Esser Slide Rule - Vintage 1900 - #4 | $9.99 | 08-Mar-2007 | 0 |
| K & E 4056 Slide Rule | $9.99 | 15-Mar-2007 | 0 |
| VINTAGE PAPER~2 SLIDE RULE BOOKS~K & E 4083 & | $9.99 | 24-Mar-2007 | 0 |
| K&E LOG LOG DUPLEX TRIG SLIDE RULE MANUAL | $9.99 | 15-Mar-2007 | 0 |
| "1928 Keuffel & Esser 4058 Beginner's Slide Ru | $9.99 | 09-Mar-2007 | 0 |
| Keuffel & Esser Slide Rule with Case 4053-3 | $9.99 | 04-Mar-2007 | 0 |
| K & E POLYPHASE DUPLEX SLIDE RULE MANUAL 1938 | $9.99 | 18-Mar-2007 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $9.99 | 18-Mar-2007 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $9.99 | 25-Mar-2007 | 0 |
| Old Keuffel & Esser slide rule w/case pat. dat | $9.99 | 25-Mar-2007 | 0 |
| Vintage Keuffel & Esser Slide Rule N 4053-3 wi | $9.99 | 09-Mar-2007 | 0 |
| PAT JUNE 5 1900 KEUFFEL & ESSER CO. N.Y. SLIDE | $9.99 | 28-Mar-2007 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $9.99 | 11-Mar-2007 | 0 |
| 1933 Keuffel & Esser Vintage Slide Rule w Case | $9.99 | 21-Mar-2007 | 0 |
| Vintage 1930s KEUFFEL & ESSER 4092-3 Slide Rul | $9.99 | 21-Mar-2007 | 0 |
| Vintage 1939 Keuffel & Esser Slide rule w/ cas | $9.99 | 11-Mar-2007 | 0 |
| SLIDE RULE POLYPHASE K&E KEUFFEL & ESSER MANUA | $9.99 | 25-Mar-2007 | 0 |
| K&E K+E 4088-3 Polyphase Duplex Slide Rule & C | $9.99 | 27-Mar-2007 | 0 |
| Lot of 3 Dietzgen & Keuffel & Esser Co. Slide | $9.99 | 11-Mar-2007 | 0 |
| 1955 K & E Slide Rule Manual Log Log Duplex De | $9.99 | 21-Mar-2007 | 0 |
| ANTIQUE QUICK & EASY SLIDE RULE w/CASE & INSTR | $9.99 | 28-Mar-2007 | 0 |
| "RARE 10"" Keuffel & Esser Slide Rule w/Leathe | $9.99 | 29-Mar-2007 | 0 |
| Polyphase Slide Rule Manual Keuffel + Esser 19 | $9.99 | 03-Mar-2007 | 0 |
| K&E K+E N 4053-3 Polyphase Slide Rule w/ Case | $9.99 | 11-Mar-2007 | 0 |
| VINTAGE KEUFFEL & ESSER K & E SLIDE RULE 4058C | $9.99 | 18-Mar-2007 | 0 |
| 1915 Keuffel& Esser co. Slide Rule w/ case | $9.99 | 20-Mar-2007 | 0 |
| Vintage Keuffel and Esser Slide Rule | $9.99 | 25-Mar-2007 | 0 |
| Keuffel & Esser Slide Rule Manual Mercury Curv | $9.99 | 05-Mar-2007 | 0 |
| K & E 4056 Slide Rule | $9.99 | 23-Mar-2007 | 0 |
| Polyphase Slide Rule Manual Keuffel + Esser 19 | $9.99 | 12-Mar-2007 | 0 |
| SLIDE RULE KEUFFEL ESSER WITH CASE K & E VINTA | $9.99 | 02-Mar-2007 | 0 |
| Antique K&E Favorite Slide Rule #4055 with lea | $9.99 | 18-Mar-2007 | 0 |
| K&E LOG LOG DUPLEX TRIG SLIDE RULE MANUAL | $9.99 | 26-Mar-2007 | 0 |
| K & E Keuffel Esser 4081-3 & 4053-3 Slide Rule | $9.99 | 12-Mar-2007 | 0 |
| OLD KEUFFEL & ESSER SLIDE RULE 4088-3 WITH CAS | $9.99 | 31-Mar-2007 | 0 |
| K&E LOG LOG DUPLEX TRIG SLIDE RULE MANUAL | $9.99 | 05-Mar-2007 | 0 |
| Vintage Keuffel & Esser NY Deo Trig Slide Rule | $9.95 | 29-Mar-2007 | 0 |
| Kueffel & Esser No. 4058 Student Slide Rule IO | $9.95 | 18-Mar-2007 | 0 |
| "Kueffel & Esser CO, K&E, Slide Rule Model No. | $9.50 | 05-Mar-2007 | 0 |
| Vintage Keuffel&Esser Beginners Slide Rule/USA | $9.00 | 05-Mar-2007 | 0 |
| VINTAGE K & E SLIDE RULE TRIMAN W & G ENGLAND | $8.99 | 04-Mar-2007 | 0 |
| Keuffel & Esser model 4058C slide rule vintage | $8.99 | 11-Mar-2007 | 0 |
| VINTAGE K & E SLIDE RULE TRIMAN W & G ENGLAND | $8.99 | 21-Mar-2007 | 0 |
| K&E Log Log Duplex Trig Slide Rule No. 4080-3 | $8.99 | 25-Mar-2007 | 0 |
| "LOT of 2- VINTAGE, K & E SLIDE RULE MANUALS" | $8.99 | 18-Mar-2007 | 0 |
| Keuffel & Essner K & E Slide Rule Antique 4088 | $8.99 | 22-Mar-2007 | 0 |
| Vintage K&E Keuffel & Esser N4058W Beginners S | $8.99 | 12-Mar-2007 | 0 |
| Vintage Keuffel & and Esser Slide Rule # 4088- | $8.99 | 05-Mar-2007 | 0 |
| Vintage K&E Log Log Duplex 4081-3 Slide rule N | $8.95 | 23-Mar-2007 | 0 |
| Keuffel & Esser K & E Slide Ruler 4058W w/case | $8.95 | 26-Mar-2007 | 0 |
| Old K & E Slide Rule Kueffel Esser co. NY #408 | $8.88 | 04-Mar-2007 | 0 |
| 1925 K & E Polyphase Slide Rule Manual Teachin | $8.75 | 23-Mar-2007 | 0 |
| K&E LOG LOG TRIG SLIDE RULE #4080-3 W/CASE | $8.50 | 21-Mar-2007 | 0 |
| K&E K+E 4058W Student's Wood Slide Rule & Case | $8.00 | 11-Mar-2007 | 0 |
| "Antique Slide Rule, Keuffel & Esser Co. N.Y." | $7.99 | 25-Mar-2007 | 0 |
| Slide Rule Keuffel & Esser | $7.99 | 21-Mar-2007 | 0 |
| Keuffel & Esser 4080-3 slide rule and leather | $7.99 | 21-Mar-2007 | 0 |
| KEUFFEL & ESSER CO.Engineering Slide Rule | $7.95 | 24-Mar-2007 | 0 |
| KEUFFEL & ESSER BEGINNERS SLIDE RULE RULER ENG | $7.50 | 09-Mar-2007 | 0 |
| K&E Slide Rule-USA-#524293-VG-Wood Frame-Leath | $6.99 | 20-Mar-2007 | 0 |
| vintage keuffel esser co.slide rule | $6.99 | 26-Mar-2007 | 0 |
| 3 SLIDE RULES 2 K&Es & 1 ACU-MATH & K&E SCRIBE | $6.99 | 18-Mar-2007 | 0 |
| K & E Log Duplex Decitrig Slide Rule Manual #N | $6.95 | 06-Mar-2007 | 0 |
| K&E Slide Rule-USA-#524293-VG-Wood Frame-Leath | $5.99 | 27-Mar-2007 | 0 |
| 1947 Keuffel & Esser Duplex Decitrig Slide Rul | $5.99 | 31-Mar-2007 | 0 |
| 1947 K & E -KEUFFEL & ESSER SLIDE RULE W/CASE | $5.99 | 06-Mar-2007 | 0 |
| Kueffel Esser Slide Rule Manual Antique Scient | $5.00 | 03-Mar-2007 | 0 |
| KEUFFER & ESSER SLIDE RULE No N4058W. | $4.99 | 04-Mar-2007 | 0 |
| KEUFFEL & ESSER #4058 Beginner's Slide Rule wi | $4.99 | 28-Mar-2007 | 0 |
| KEUFFEL&ESSER BEGINNERS SLIDE RULE VERY NICE N | $4.99 | 11-Mar-2007 | 0 |
| K & E K-12 PREP SLIDE RULE *Very Nice* | $4.99 | 21-Mar-2007 | 0 |
| Vintage K&E Keuffel & Esser Wooden Slide Rule | $4.99 | 04-Mar-2007 | 0 |
| KEUFFEL & ESSER LOG LOG DUPLEX SLIDE RULE 4092 | $4.99 | 24-Mar-2007 | 0 |
| 1944 Keuffel & Esser POLYPHASE SLIDE RULE Manu | $4.99 | 24-Mar-2007 | 0 |
| KEUFFEL ESSER CO. BEGINNERS SLIDE RULER MADE I | $4.99 | 10-Mar-2007 | 0 |
| Keuffel & Esser K-E 4053-3 Slide Rule | $4.99 | 17-Mar-2007 | 0 |
| Keuffel & Esser K-E 4053-3 Slide Rule | $4.99 | 31-Mar-2007 | 0 |
| KEUFFEL ESSER CO. BEGINNERS SLIDE RULER MADE I | $4.99 | 19-Mar-2007 | 0 |
| KEUFFEL & ESSER LOG LOG DUPLEX SLIDE RULE 4092 | $4.99 | 31-Mar-2007 | 0 |
| *Beginner's Slide Rule* KUEFFEL & ESSER #4058 | $3.95 | 02-Mar-2007 | 0 |
| *Beginner's Slide Rule* KUEFFEL & ESSER #4058 | $3.95 | 16-Mar-2007 | 0 |
| 1938 THE POLYPHASE #4053 K&E SLIDE RULE BOOK | $3.00 | 07-Mar-2007 | 0 |
| Vintage Keuffel & Esser Co. 4058 Beginners Sli | $2.99 | 21-Mar-2007 | 0 |
| Vintage Keuffel & Esser Co. 4058 Beginners Sli | $2.99 | 04-Mar-2007 | 0 |
| Polyphase Duplex Slide Rule Manual '38 Keuffel | $2.00 | 18-Mar-2007 | 0 |
| "Slide Rule, K&E Beginner's #4058W, 10 1/2"" W | $2.00 | 21-Mar-2007 | 0 |
| Vintage K&E Keuffel & Esser Wooden Slide Rule | $1.99 | 11-Mar-2007 | 0 |
| Keuffel & Esser Vintage 12 inch Slide Rule No | $0.99 | 05-Mar-2007 | 0 |
| Keuffel & Esser 4058W Beginners slide rule | $0.99 | 10-Mar-2007 | 0 |