| Keuffel and Esser |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Dec-2007 |
| Gigantic Keuffel & Esser Cylindrical Slide Rul | $2753.97 | 16-Dec-2007 | 17 |
| Vintage K&E 1966 Analon Slide Rule Mint Orig P | $1102.00 | 21-Dec-2007 | 21 |
| Keuffel and Esser Co. 4132 Crane's Slide Rule | $745.69 | 07-Dec-2007 | 12 |
| Vintage Keuffel & Esser Slide Rule with Leathe | $370.33 | 02-Dec-2007 | 12 |
| "OLD KEUFFEL & ESSER NO. 4110 14.5"" SLIDE RUL | $225.99 | 03-Dec-2007 | 11 |
| "RARE 20.5"" K&E AERO 1927 U.S.N. Slide Rule N | $210.37 | 09-Dec-2007 | 14 |
| KEUFFEL & ESSER K+E DECI-LON SLIDE RULE | $152.49 | 03-Dec-2007 | 8 |
| Vintage K&E 68-1130 Deci-Lon Pocket Slide Rule | $127.50 | 20-Dec-2007 | 21 |
| "Slide Ruler Keuffel & Esser Co. 20""" | $125.00 | 02-Dec-2007 | 1 |
| K & E Vintage Keuffel and Esser Slide Rule w/C | $122.49 | 09-Dec-2007 | 18 |
| 68 1130 K&E K+E Keuffel & Esser Slide Rule Cas | $111.11 | 17-Dec-2007 | 13 |
| SLIDE RULE: KEUFFEL & ESSER CO. 21 1/2 INCHES | $109.39 | 01-Dec-2007 | 4 |
| AUTHENTIC Vintage KE Keuffel Esser SLIDE RULE | $108.26 | 13-Dec-2007 | 8 |
| KEUFFEL & ESSER SLIDE RULER NIB | $106.49 | 08-Dec-2007 | 10 |
| K&E 68-1130 Deci-Lon Pocket Slide Rule | $106.17 | 16-Dec-2007 | 2 |
| KEUFFEL & ESSER 4071-3 DUPLEX TRIG SLIDE RULE | $105.00 | 23-Dec-2007 | 1 |
| VINTAGE DUPLEX DECITRIG SLIDE RULE BY KEUFFEL | $93.00 | 02-Dec-2007 | 10 |
| "K&E Kueffel & Esser 4031 5"" pocket slide rul | $80.99 | 16-Dec-2007 | 5 |
| Keuffel & Esser 4096 Slide Rule | $79.78 | 30-Dec-2007 | 3 |
| 68 1012 Duplex Decitrig Slide Rule Keuffel Ess | $78.77 | 19-Dec-2007 | 11 |
| VINTAGE K&E DECI-LON SLIDE RULE IN CASE & 186 | $78.77 | 16-Dec-2007 | 11 |
| K&E Rare Green 9068G Pocket Slide Rule Celanes | $78.00 | 16-Dec-2007 | 5 |
| K&E DECI-LON SLIDE RULE 68 1100 186 PG BOOK AN | $77.77 | 24-Dec-2007 | 10 |
| Keuffel and Esser Deci-Lon 10 Slide Rule | $76.00 | 30-Dec-2007 | 13 |
| "2 older Slide Rule Keuffel & Esser K&E 12"" & | $74.00 | 02-Dec-2007 | 16 |
| K&E Decilon Log Log Duplex Slide Rule | $70.99 | 09-Dec-2007 | 8 |
| "K+E ""JET-LOG Jr."" slide rule w/case + docum | $67.00 | 07-Dec-2007 | 4 |
| K+E 4181-1C Ivorite Slide Rule | $66.00 | 29-Dec-2007 | 14 |
| Vintage K & E Slide Rule w/ sleeve no. 68 1100 | $64.87 | 23-Dec-2007 | 9 |
| K&E 10 Deci-Lon Slide Rule 1961 Keuffel & Esse | $63.87 | 22-Dec-2007 | 13 |
| Deci-Lon 10 Slide Rule 68-1100 K E Keuffel & E | $62.57 | 03-Dec-2007 | 10 |
| Rare 22 inch Keuffel & Esser slide rule with c | $61.00 | 04-Dec-2007 | 15 |
| K & E Slide Rule Deci-Lon 10 68 1100 W/Case & | $59.08 | 10-Dec-2007 | 4 |
| "KEUFFEL & ESSER Jet-Log Duplex SLIDE RULE,Box | $59.00 | 20-Dec-2007 | 9 |
| "Vintage Keuffel&Esser 16"" slide rule" | $58.55 | 07-Dec-2007 | 10 |
| Lot Of 3 KEUFFEL & ESSER SLIDE RULE TOOL RULER | $58.00 | 01-Dec-2007 | 6 |
| "RARE VINTAGE K&E, KEUFFEL & ESSER No. 4045 SL | $56.55 | 15-Dec-2007 | 7 |
| DIETZGEN & K&E Slide Rules + Leather Cases VER | $55.00 | 15-Dec-2007 | 4 |
| K&E N4081-3 Log Log Duplex Slide Rule + + + + | $54.00 | 09-Dec-2007 | 5 |
| KEUFFEL & ESSER DECI-LON 10 SLIDE RULE 68-1100 | $53.60 | 27-Dec-2007 | 2 |
| "old K&E Polyphase slide rule, 20 inch w/ box, | $53.50 | 01-Dec-2007 | 6 |
| Nice Old 8 inch 4088-2 Keuffel Esser K&E Slide | $51.05 | 01-Dec-2007 | 9 |
| K&E Deci-lon Slide Rule with Leather Case | $51.00 | 09-Dec-2007 | 11 |
| "Long 20 1/2"" Slide Rule KEUFFEL & ESSER <405 | $50.00 | 17-Dec-2007 | 7 |
| K+E 10 DECI-LON SLIDE RULE | $48.00 | 08-Dec-2007 | 10 |
| K&E Slide Rule with Case log log duplex | $47.00 | 02-Dec-2007 | 6 |
| Keuffel & Esser Co. Deci-Lon Slide Rule & Case | $43.77 | 11-Dec-2007 | 5 |
| KEUFFEL & ESSER MDL#4181-3 SLIDE RULE AND CASE | $42.99 | 15-Dec-2007 | 4 |
| "Precision engineering slide rule, Kekuffel & | $42.95 | 19-Dec-2007 | 8 |
| K&E 4081-3 Log Log Duplex Slide Rule W/Case Bo | $42.87 | 27-Dec-2007 | 4 |
| Keuffel & Esser 4058 c Beginner's Slide Rule 1 | $42.00 | 25-Dec-2007 | 24 |
| OLD SLIDE RULE KEUFFEL & ESSER BUBBLE MAGNIFIE | $41.00 | 02-Dec-2007 | 9 |
| DECI-LON Slide Rule 68-1100 K E Keuffel & Esse | $41.00 | 24-Dec-2007 | 3 |
| LOT OF 2 VINTAGE KEUFFEL&ESSER SLIDE RULES ORI | $41.00 | 31-Dec-2007 | 7 |
| vintage Keuffel & Esser K+E Slide Rule Deci-Lo | $40.99 | 11-Dec-2007 | 9 |
| "Keuffel & Esser K&E 4083-3 Slide Rule, Case M | $39.00 | 06-Dec-2007 | 12 |
| "K&E K & E 12"" Slide Rule Log Log Duplex Deci | $38.00 | 01-Dec-2007 | 7 |
| Vintage Antique 1900 K&E Keuffel & Esser Slide | $37.99 | 30-Dec-2007 | 5 |
| K & E Cooke Radio Slide Rule Manual Keuffel & | $37.87 | 05-Dec-2007 | 12 |
| Keuffel & Esser K&E N-4096 Desk Slide Rule c B | $37.00 | 06-Dec-2007 | 6 |
| K&E 4081-3 S Log Log Duplex Slide Rule | $36.01 | 01-Dec-2007 | 5 |
| Keuffel and Esser Co. Polyphase Vintage Slide | $36.00 | 14-Dec-2007 | 19 |
| "KEUFFEL & ESSER ANTIQUE SLIDE RULE, 4088-3, c | $36.00 | 04-Dec-2007 | 13 |
| KEUFFEL & ESSER CO. 4083-3 vintage slide rule | $35.51 | 23-Dec-2007 | 10 |
| 1947 K & E Slide Rule 4081-3 Log Log Duplex De | $33.00 | 06-Dec-2007 | 13 |
| KEUFFEL& ESSER SLIDE RULE VINTAGE WITH CASE | $32.99 | 16-Dec-2007 | 7 |
| "20 1/2"" Slide Rule KEUFFEL & ESSER 4053-5 w/ | $32.31 | 31-Dec-2007 | 6 |
| K & E Slide Rule with Case and Manual 1947 Cop | $32.30 | 15-Dec-2007 | 8 |
| "VINTAGE K & E SLIDERULE 4181-1 W/BOX, SLEEVE | $32.00 | 27-Dec-2007 | 5 |
| VINTAGE KEUFFEL & ESSER No. 4181-1 SLIDE RULE | $32.00 | 21-Dec-2007 | 8 |
| KEUFFEL & ESSER Log Log Duplex Vector Slide Ru | $31.04 | 16-Dec-2007 | 9 |
| Antique Keuffel & Esser SLIDE RULE w/ case Sun | $31.00 | 23-Dec-2007 | 11 |
| K&E Sliderule Tie Clasp Clip Enameled Keuffel | $31.00 | 03-Dec-2007 | 7 |
| Vintage Slide Rule Lot K+E Sun Hemmi Lietz | $31.00 | 09-Dec-2007 | 3 |
| "Antique 12 1/2"" Slide Rule by Keuffel & Esse | $30.00 | 04-Dec-2007 | 5 |
| K&E 4080 Slide Rule Manual 1939 Log Log Duplex | $30.00 | 02-Dec-2007 | 9 |
| Vintage K&E Slide Rule 4181-1 w/ green leather | $30.00 | 09-Dec-2007 | 3 |
| Keuffel & Esser 4181-1 Slide Rule Vintage with | $29.50 | 17-Dec-2007 | 4 |
| "6 in. K & E 4181 - 1 Slide Rule, manual and b | $28.98 | 08-Dec-2007 | 6 |
| Keuffel Esser Co Slide Rule 4053 Vintage w/ Ca | $28.11 | 09-Dec-2007 | 2 |
| Keuffel & Esser Slide Rules Deci-Lon Instructi | $27.98 | 10-Dec-2007 | 2 |
| Vintage K&E Keuffel and Esser 4181-1 Slide Rul | $27.51 | 19-Dec-2007 | 8 |
| Keuffel & Esser KE 4081-3 Slide Rule Log Log D | $27.50 | 06-Dec-2007 | 11 |
| K+E KEUFFEL & ESSER CO SLIDE RULE 4181-3 leath | $27.00 | 03-Dec-2007 | 4 |
| KEUFFEL & ESSER SLIDE RULE MAGNIFIER #4185C WI | $27.00 | 17-Dec-2007 | 5 |
| Keuffel & Esser 1947 slide rule N9081-3 Doric | $26.99 | 21-Dec-2007 | 7 |
| Keuffel & Esser Co. Slide Rule in Leather Case | $26.03 | 09-Dec-2007 | 9 |
| K&E Keuffel & Esser Acu Designs Slide Rule Lot | $26.00 | 10-Dec-2007 | 3 |
| "K&E N-4053-3S Polyphase Slide Rule, Original | $26.00 | 18-Dec-2007 | 5 |
| Keuffel & Esser 4081-3 slide rule w/case box K | $26.00 | 23-Dec-2007 | 2 |
| BEAUTIFUL K & E Sliderule Ser.# 416575 Leo Cam | $25.49 | 17-Dec-2007 | 21 |
| Antique Keuffel & Esser Slide Rule w/ org. lea | $25.40 | 20-Dec-2007 | 7 |
| K & E Slide Ruler w/leather case | $25.00 | 14-Dec-2007 | 1 |
| 1924 KEUFFEL & ESSER SLIDE RULE ORIG LEATHER C | $25.00 | 18-Dec-2007 | 1 |
| Old 4081-3 Keuffel Esser K&E Slide Rule LOG LO | $24.99 | 16-Dec-2007 | 1 |
| Slide Rule Keuffel & Esser Co. KE Ruler With B | $24.99 | 14-Dec-2007 | 1 |
| Keuffel & Esser Slide Rule & Leather Case 4090 | $24.90 | 05-Dec-2007 | 4 |
| "Vintage,Keuffel & Esser Slide Rule x 2 ,Steel | $24.49 | 09-Dec-2007 | 4 |
| "Replacement Slide Rule Indicator, K&E 4000 Sl | $24.26 | 18-Dec-2007 | 8 |
| Vtg Keuffel & Esser Slide Rule US 4053-3 Leath | $23.95 | 10-Dec-2007 | 1 |
| K&E Slide Rule Manual No. 4161 Keuffel & Esser | $23.46 | 08-Dec-2007 | 5 |
| 1955 KEUFFEL & ESSER CO. SLIDE RULE MANUAL COM | $23.00 | 07-Dec-2007 | 7 |
| IVORY SLIDE RULE EARLY PATENT KEUFFEL & ESSER | $22.72 | 16-Dec-2007 | 9 |
| Collection of 8 K & E Slide Rules | $21.56 | 02-Dec-2007 | 4 |
| Vintage Keuffel & Esser 4081-3 Slide Rule and | $20.61 | 10-Dec-2007 | 7 |
| "Vintage Keuffel & Esser Co. Slide Rule ,Case | $20.50 | 13-Dec-2007 | 6 |
| Vintage Keuffel & Esser N4081-3 Log Log Slide | $20.50 | 30-Dec-2007 | 4 |
| Keuffel & Essel Nice Vintage Slide Rule With C | $20.50 | 22-Dec-2007 | 6 |
| Keuffel & Esser K&E 4081-3 Log Log slide rule | $20.49 | 09-Dec-2007 | 3 |
| "Vintage K&E Keuffel and Esser, 4181-1 Slide R | $20.49 | 02-Dec-2007 | 5 |
| "SLIDE RULE by "" KEUFFEL & ESSER Co N.Y W/LEA | $20.45 | 28-Dec-2007 | 5 |
| K & E VINTAGE SLIDE RULE WITH LEATHER CASE KEU | $20.01 | 11-Dec-2007 | 4 |
| Vintage Keuffel & Esser K E Slide Rule 4081-3 | $20.00 | 09-Dec-2007 | 1 |
| Vintage Slide Ruler Keuffel & Esser Co 4081-3 | $19.99 | 23-Dec-2007 | 1 |
| Deci-Lon...K+E Slide Rules...Instruction Manua | $19.50 | 21-Dec-2007 | 2 |
| Vintage Keuffer and Esser Co. Slide Rule w Lea | $19.09 | 13-Dec-2007 | 7 |
| "K&E Log Log Duplex Decitrig Slide Rule, Book, | $19.00 | 15-Dec-2007 | 5 |
| MINT..ANTIQUE VINTAGE K&E SLIDE RULE 4092-3.. | $18.75 | 15-Dec-2007 | 4 |
| 1943 KEUFFEL & ESSER SLIDE RULE NO. 4080 MANUA | $18.45 | 07-Dec-2007 | 4 |
| Vintage Keuffel & Esser Slide Rule with Case | $18.31 | 02-Dec-2007 | 12 |
| Vintage Drafting Tool Keuffel & Esser Slide Ru | $18.05 | 11-Dec-2007 | 8 |
| K&E Keuffel & Esser Slide Rule 4161-1 02455 NR | $18.00 | 30-Dec-2007 | 7 |
| Vintage Kueffel & Esser Slide Rule w/ Leather | $18.00 | 14-Dec-2007 | 6 |
| "1949 Keuffel & Esser Co. catalog, slide rules | $18.00 | 17-Dec-2007 | 3 |
| VINTAGE KEUFFEL & ESSER CO. N. Y. SLIDE RULE N | $17.99 | 02-Dec-2007 | 1 |
| vintage K & E slide rule log log duplex decitr | $17.50 | 24-Dec-2007 | 5 |
| 1932 Keuffel & Esser Slide Rule Catalog | $17.00 | 16-Dec-2007 | 2 |
| 2 Vintage Slide Rules - K&E And Sterling | $16.71 | 14-Dec-2007 | 5 |
| "1891 Keuffel Esser Slide Rule Manual 4041F-40 | $16.60 | 09-Dec-2007 | 2 |
| "ANTIQUE KEUFFEL & ESSER 4092 SLIDE RULE & CAS | $16.49 | 02-Dec-2007 | 2 |
| "1962 K & E. Slide Rules, Hardback Self-Instru | $16.49 | 30-Dec-2007 | 4 |
| KEUFFEL & ESSER SLIDE RULE COPYRIGHT 1947 #68 | $16.48 | 12-Dec-2007 | 3 |
| Keuffel & Esser 4092-3s Slide Rule With Leathe | $16.27 | 03-Dec-2007 | 3 |
| K&E Decitrig Slide Rule with Case & Manual 194 | $16.27 | 09-Dec-2007 | 4 |
| KEUFFEL & ESSER CO. SLIDE RULE NO.4053-3 CASE | $15.51 | 22-Dec-2007 | 12 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE W/CASE JUNE | $15.50 | 07-Dec-2007 | 2 |
| Keuffel & Esser K&E 4081-3 Log Log slide rule | $15.50 | 12-Dec-2007 | 3 |
| VINTAGE KEUFFEL& ESSER CO. SLIDE RULE W/ LEATH | $15.50 | 27-Dec-2007 | 3 |
| 1947 Keuffel & Esser Co. slide rule w/ case | $15.50 | 02-Dec-2007 | 7 |
| "LOT VINTAGE SLIDE RULES SUN HEMMI, POST, K&E | $15.50 | 22-Dec-2007 | 2 |
| K+E KEUFFEL & ESSER 4081-3 1947 SLIDE RULE WIT | $15.50 | 20-Dec-2007 | 7 |
| VINTAGE KEUFFEL & ESSER 4080-3 SLIDE RULE AND | $15.50 | 11-Dec-2007 | 3 |
| KEUFFEL & ESSER SLIDE RULE WITH LEATHER CASE | $15.00 | 16-Dec-2007 | 3 |
| K&E KEUFFEL ESSER 4081-3 SLIDE RULE LOG | $15.00 | 28-Dec-2007 | 1 |
| K&E Beginners Slide Rule with Original Case Mo | $14.95 | 22-Dec-2007 | 1 |
| Keuffel and Esser Co. Manheim Slide Rule Paten | $14.50 | 19-Dec-2007 | 3 |
| slide rule Keuffel Esser 4081-3 vintage no cas | $14.50 | 01-Dec-2007 | 5 |
| 1950s K&E Keuffel & Esser 42nd ed Catalog Slid | $13.50 | 17-Dec-2007 | 3 |
| K&E Keuffel & Esser 4161-1 Slide Rule Box Case | $13.07 | 17-Dec-2007 | 3 |
| 1947 Keuffel & Esser Slide Rule w/ leather cas | $13.00 | 02-Dec-2007 | 9 |
| K & E / Keuffel & Esser Co-Slide Rule #4053-3 | $13.00 | 15-Dec-2007 | 2 |
| K&E Keuffel and Esser 4053-3 Slide Rule Wood R | $12.84 | 16-Dec-2007 | 2 |
| 2 Vintage K&E Slide Rules 4088-3 4053-3 Rulers | $12.75 | 19-Dec-2007 | 2 |
| Vintage K&E SLIDE RULE # 4092-3 W/ CASE NICE | $12.50 | 20-Dec-2007 | 4 |
| Vintage Keuffel & Esser N9081-3 Slide Rule w/C | $12.50 | 02-Dec-2007 | 4 |
| Lot Vintage Slide Rule Books K & E log log dup | $12.50 | 17-Dec-2007 | 4 |
| Keuffel & Esser K&E Beginners slide rule w/cas | $12.50 | 05-Dec-2007 | 3 |
| Kuffel & Esser Slide rule with case! Model 408 | $12.49 | 12-Dec-2007 | 4 |
| "1947 KEUFFEL & ESSER 12 1/2"" SLIDE RULE WITH | $12.00 | 22-Dec-2007 | 5 |
| VINTAGE KEUFFEL & ESSER K&E 4041 SLIDE RULE WI | $11.55 | 28-Dec-2007 | 2 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE PATENTED 19 | $11.50 | 13-Dec-2007 | 2 |
| Vintage Keuffel Esser Slide Rule W/ Leather Ca | $11.49 | 09-Dec-2007 | 3 |
| Keuffel & Esser Slide Ruler 4181-1Leather Case | $11.05 | 08-Dec-2007 | 9 |
| OLD Keuffel & Esser Company Slide rule case an | $11.00 | 27-Dec-2007 | 6 |
| K & E #4181-3 LOG LOG DECITRIG SLIDE RULE U.S. | $10.63 | 16-Dec-2007 | 3 |
| K & E DECITRIG LOG LOG SLIDE RULE #4091-3 WITH | $10.60 | 05-Dec-2007 | 2 |
| "1928 Keuffel & Esser 4058 Beginner's Slide Ru | $10.50 | 18-Dec-2007 | 2 |
| K E Keuffel & Esser Ivorite Slide Rule Log Log | $10.50 | 02-Dec-2007 | 4 |
| "KEUFFEL & ESSER CO SLIDE RULE 12"" X 1 5/8"" | $10.50 | 15-Dec-2007 | 2 |
| Vintage Keuffel & Esser Co. Slide Rule 4053-3 | $10.50 | 14-Dec-2007 | 4 |
| K & E Keuffel & Esser Mannheim Slide Rule 4058 | $10.50 | 30-Dec-2007 | 2 |
| Vintage Keuffel & Esser N4053-3 Slide Rule Wit | $10.50 | 10-Dec-2007 | 2 |
| K&E Keuffel & Esser Slide Rule 4088-3 71467 NR | $10.50 | 30-Dec-2007 | 3 |
| VINTAGE K-E N4053-3 KEUFFEL & ESSER SLIDE RULE | $10.50 | 18-Dec-2007 | 3 |
| Keuffel & Esser Co. Slide Rule 4081-3 w/ Hard | $10.50 | 06-Dec-2007 | 4 |
| KEUFFEL & ESSER SLIDE RULE & CASE MODEL4080-3 | $10.50 | 19-Dec-2007 | 2 |
| KEUFFEL & ESSER SLIDE RULE WITH LEATHER CASE | $10.49 | 17-Dec-2007 | 2 |
| *3* VINTAGE KEUFFEL & ESSER SLIDE RULES K&E SL | $10.49 | 16-Dec-2007 | 2 |
| VINTAGE SLIDE RULER+LEATHER CASE- KEUFFEL & ES | $10.01 | 22-Dec-2007 | 3 |
| c.1926 Log Log Duplex Slide Rule Manual Keuffe | $10.00 | 27-Dec-2007 | 1 |
| KEUFFEL & ESSER K&E SLIDE RULE No. 4081 W/MAN+ | $10.00 | 10-Dec-2007 | 4 |
| "1955 K & E. Slide Rules, Hardback Self-Instru | $9.99 | 23-Dec-2007 | 1 |
| Vintage Keuffel & Esser Co. Slide Rule w/case | $9.99 | 27-Dec-2007 | 1 |
| K&E Slide Rule/Case-Model 4097D pocket slide r | $9.99 | 19-Dec-2007 | 1 |
| Keuffel & Esser Co. Slide Rule 4080-3 Vintage | $9.99 | 09-Dec-2007 | 1 |
| Keuffel & Esser Co. Slide Rule 4081-3 Vintage | $9.99 | 09-Dec-2007 | 1 |
| 1915 Keuffel & Esser Slide Ruler in Case #4088 | $9.99 | 02-Dec-2007 | 1 |
| "old Keuffel Esser SLIDE RULE pat. June 5, 190 | $9.99 | 13-Dec-2007 | 1 |
| 1947 K&E Kueffel and Esser SlideRule 4080-3 Lo | $9.99 | 04-Dec-2007 | 1 |
| 2 Vintage Keuffel & Esser K&E Slide Rule Manua | $9.99 | 18-Dec-2007 | 1 |
| Keuffel Esser Slide Rule Manual 1920 Mannheim | $9.99 | 21-Dec-2007 | 1 |
| VINTAGE KEUFFEL & ESSER SLIDE RULE & TRIANGLE | $9.99 | 10-Dec-2007 | 1 |
| "Vintage K&E Keuffel and Esser, 4081-3 Bamboo | $9.99 | 10-Dec-2007 | 1 |
| K & E polyphase slide rule #4053-3 | $9.99 | 10-Dec-2007 | 1 |
| K&E Slide Rule Keuffel & Esser 4080-3 w/Case | $9.99 | 11-Dec-2007 | 1 |
| VINTAGE KEUFFEL & ESSER K&E SLIDE RULE # 4081- | $9.99 | 07-Dec-2007 | 1 |
| 1928 KEUFFEL & ESSER Slide Rule w/ Manual & Ha | $9.99 | 06-Dec-2007 | 1 |
| "2 SLIDE RULES / KEUFFEL & ESSER N.Y. PAT. JUN | $9.99 | 01-Dec-2007 | 1 |
| OLD SLIDE RULE KEUFFEL & ESSER & CASE | $9.95 | 02-Dec-2007 | 1 |
| 1947 K & E N4081-3 Slide Rule Log Log Duplex & | $9.49 | 27-Dec-2007 | 3 |
| K&E Keuffel & Esser Co N4081 Slide Rule Manual | $9.44 | 18-Dec-2007 | 1 |
| OLD KEUFFEL & ESSER 4055 SLIDE RULE W/ CASE | $9.00 | 05-Dec-2007 | 1 |
| Slide Rule Two K&E 452218 and No. 1092 Germany | $9.00 | 09-Dec-2007 | 2 |
| "Keuffel & Esser SLIDE RULE Pat. June 5,'00 Mo | $9.00 | 08-Dec-2007 | 1 |
| K&E Keuffel and Esser 4058 C Slide Rule Wood R | $8.99 | 16-Dec-2007 | 1 |
| SLIDE RULE - Vintage K&E - holster and manual | $8.50 | 04-Dec-2007 | 3 |
| KEUFFEL & ESSER Slide Rule & Leather Case 4092 | $8.40 | 13-Dec-2007 | 1 |
| "3 KEUFFEL & ESSER Slide Rules, PAT. JUNE 5,19 | $7.99 | 09-Dec-2007 | 1 |
| "KEUFFEL & ESSER CO 10 DECILON SLIDE RULE, CAS | $7.99 | 31-Dec-2007 | 1 |
| 1917 Slide Rule Manual Keuffel & Esser + Hemmi | $7.99 | 12-Dec-2007 | 1 |
| Vintage Keuffel & Esser 4083-3 Wood Slide Rule | $7.99 | 09-Dec-2007 | 1 |
| Antique Kueffel Esser Mannheim Slide Rule Manu | $7.95 | 05-Dec-2007 | 1 |
| 10 in Slide Rule Mod 10B + Book Engineering In | $7.95 | 02-Dec-2007 | 1 |
| Mannheim Polyphase Slide Rule Manual Keuffel E | $7.87 | 29-Dec-2007 | 1 |
| Keuffel & Esser KE 4053-3 Slide Rule Original | $7.50 | 06-Dec-2007 | 4 |
| Keuffel & Esser Slide Rule Manual | $7.50 | 02-Dec-2007 | 3 |
| Vintage Keuffel & Esser #4081-3 Slide Rule w/C | $7.29 | 02-Dec-2007 | 6 |
| K & E SLIDE RULE W/ CASE 20 INCHES LONG 1930s | $7.25 | 11-Dec-2007 | 2 |
| Antique Keuffel & Esser Wood Slide Rule No. 40 | $6.99 | 02-Dec-2007 | 1 |
| K&E Log Log Duplex Decitrig N4081 Slide Rule M | $6.50 | 18-Dec-2007 | 2 |
| "Lot of 3 var.slide rules,2 have cases,K&E,P&E | $6.50 | 09-Dec-2007 | 2 |
| 2 Vintage Keuffel & Esser Slide Rules 4181-3 & | $6.00 | 05-Dec-2007 | 2 |
| SLIDE RULE KEUFFEL & ESSER CASE ENGINEERING 19 | $5.99 | 20-Dec-2007 | 1 |
| K & E KEUFFEL & ESSER CO SLIDE RULE 4098 A LEA | $5.50 | 19-Dec-2007 | 2 |
| VINTAGE K & E SLIDE RULE 1928 | $5.50 | 06-Dec-2007 | 2 |
| K&E Slide Rule w/Leather Case | $5.50 | 22-Dec-2007 | 4 |
| "Vintage 'K & E' ""FAVORITE"" Slide Rule...Mod | $5.50 | 16-Dec-2007 | 2 |
| Keuffel & Esser Co. Doric Slide Rule N9081-3 | $5.50 | 23-Dec-2007 | 2 |
| 2 vintage Slide Rule items: K+E Manual & Post | $5.00 | 19-Dec-2007 | 2 |
| "KEUFFEL & ESSER SLIDE RULE, 1961" | $5.00 | 03-Dec-2007 | 6 |
| KEUFFEL&ESSER No.N4081 SLIDE RULE MANUAL+SUPPL | $5.00 | 03-Dec-2007 | 4 |
| K&E Slide Rule w Case Instructions Keuffel Ess | $4.99 | 08-Dec-2007 | 1 |
| K&E 4088-3 SLIDE RULE WITH LEATHER CASE ca. 19 | $4.99 | 03-Dec-2007 | 1 |
| KEUFFEL & ESSER co. SLIDE RULE w nice case | $4.99 | 28-Dec-2007 | 1 |
| KEUFFEL & ESSER SLIDE RULE 1947 | $4.99 | 08-Dec-2007 | 1 |
| VINTAGE KEUFFEL AND ESSER BEGINNER SLIDE RULE | $4.99 | 05-Dec-2007 | 1 |
| KEUFFEL & ESSER POLYPHASE DUPLEX SLIDE RULE MA | $4.99 | 17-Dec-2007 | 1 |
| Keuffel & Esser Log Duplex Decitrig Slide Rule | $4.99 | 12-Dec-2007 | 1 |
| K & E BEGINNER'S SLIDE RULE 4058C | $4.99 | 19-Dec-2007 | 2 |
| "DORIC K & E CO. SLIDE RULE 6"" X 1 1/8"" With | $4.95 | 15-Dec-2007 | 1 |
| KEUFFEL & ESSER CO. SLIDE RULE MANUAL #4081 | $4.25 | 12-Dec-2007 | 2 |
| K&E 4088-3 SLIDE RULE W/ LEATHER CASE Pat 1908 | $4.25 | 16-Dec-2007 | 2 |
| Keuffel Esser Slide Rule Instruction Manual Bo | $4.25 | 01-Dec-2007 | 1 |
| "COLE PARMER PH WAND ,PLUS K & E SLIDE RULER, | $4.00 | 08-Dec-2007 | 2 |
| 1900 KEUFFEL & ESSER N4053-3...LAWRENCE SLIDE | $3.99 | 28-Dec-2007 | 1 |
| VINTAGE SLIDE RULE BY KUEFFEL&ESSER CO NY. N- | $3.99 | 13-Dec-2007 | 1 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $3.95 | 18-Dec-2007 | 1 |
| K&E slide rules | $3.24 | 25-Dec-2007 | 2 |
| SLIDE RULE - Vintage K&E - holster and manual | $2.99 | 04-Dec-2007 | 1 |
| KEUFFEL & ESSER DUPLEX DECITRIG 4071 SLIDE RUL | $2.99 | 23-Dec-2007 | 1 |
| KEUFFEL & ESSER SLIDE RULE MANUAL LOG DUPLEX D | $2.99 | 03-Dec-2007 | 1 |
| "1932 Keuffel&Esser Log Log Duplex Slide Rule | $2.99 | 30-Dec-2007 | 1 |
| KEUFFEL & ESSER SLIDE RULE #4054 w LEATHER CAS | $2.99 | 15-Dec-2007 | 2 |
| K&E KEUFFEL & ESSER SLIDE RULE 4098A CASE BOX | $1.99 | 09-Dec-2007 | 1 |
| K&E N4058W Slide Rule w/ case | $1.00 | 23-Dec-2007 | 1 |
| 1928 Keuffel & Esser slide rule | $0.99 | 05-Dec-2007 | 1 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $0.99 | 09-Dec-2007 | 1 |
| Keuffel & Esser N4041 & A. Lietz 2974N Slide R | $0.99 | 01-Dec-2007 | 2 |
| "K&E DECI-LON 10"" SLIDE RULE and LEATHER CASE | $124.99 | 20-Dec-2007 | 0 |
| Big Slide Rule Slidedisk Emil Tröger Circular | $89.00 | 01-Dec-2007 | 0 |
| Big Slide Rule Slidedisk Emil Tröger Circular | $89.00 | 09-Dec-2007 | 0 |
| Big Slide Rule Slidedisk Emil Tröger Circular | $79.00 | 23-Dec-2007 | 0 |
| Vintage Keuffel & Esser SLIDE RULE w/ Leather | $75.00 | 20-Dec-2007 | 0 |
| Vintage Keuffel & Esser SLIDE RULE w/ Leather | $60.00 | 09-Dec-2007 | 0 |
| 1940's VINTAGE K&E SLIDE RULE 4081-3S WITH CAS | $59.95 | 20-Dec-2007 | 0 |
| DECI-LON Slide Rule 68-1100 K E Keuffel & Esse | $49.99 | 19-Dec-2007 | 0 |
| K&E KEUFFEL&ESSER SLIDE RULE w/Orig. LEATHER C | $49.90 | 18-Dec-2007 | 0 |
| K & E Slide Ruler w/leather case | $40.00 | 12-Dec-2007 | 0 |
| KEUFFEL & ESSER CO. SLIDE RULE MODEL NO.4053-3 | $25.00 | 05-Dec-2007 | 0 |
| KEUFFEL & ESSER PLASTIC SLIDE RULE CASE BOX & | $24.99 | 04-Dec-2007 | 0 |
| Keuffel & Esser Co. Slide Rule Boxwood w/Leath | $24.99 | 14-Dec-2007 | 0 |
| 2 Vintage K&E Slide Rules 4088-3 4053-3 Rulers | $24.99 | 11-Dec-2007 | 0 |
| KEUFFEL & ESSER PLASTIC SLIDE RULE CASE BOX & | $24.99 | 12-Dec-2007 | 0 |
| *3* VINTAGE KEUFFEL & ESSER SLIDE RULES K&E SL | $24.99 | 08-Dec-2007 | 0 |
| Keuffel & Esser Slide Rule with Manual and Lea | $24.95 | 11-Dec-2007 | 0 |
| 1947 vintage Keuffel & Esser K+E Slide Rule 40 | $19.99 | 11-Dec-2007 | 0 |
| "Keuffel & Esser vintage 50""s ? Slide Ruler" | $19.95 | 15-Dec-2007 | 0 |
| OIL FIELD CONSTRUCTION CO. KEUFFEL & ESSER SLI | $14.99 | 05-Dec-2007 | 0 |
| "KEUFFEL & ESSER CO 10 DECILON SLIDE RULE, CAS | $14.99 | 18-Dec-2007 | 0 |
| "Vintage K&E Keuffel and Esser, 4081-3 Bamboo | $9.99 | 02-Dec-2007 | 0 |
| 4090-3 Log Log Trig - Keuffel & Esser Co. NY S | $9.99 | 05-Dec-2007 | 0 |
| Vtg Keuffel & Esser Slide Rule US 4053-3 Leath | $9.99 | 23-Dec-2007 | 0 |
| Vintage Keufflel & Esser Slide Rule | $9.99 | 09-Dec-2007 | 0 |
| KEUFFEL & ESSER K& E LOG LOG DUPLEX DECITRIG S | $9.99 | 05-Dec-2007 | 0 |
| KEUFFEL & ESSER K& E reversible slide rule #40 | $9.99 | 05-Dec-2007 | 0 |
| KEUFFEL & ESSER CO. N.Y. BEGINNERS SLIDE RULE | $9.99 | 16-Dec-2007 | 0 |
| "Slide Rule, wood - Keuffel & Esser 1928" | $9.99 | 26-Dec-2007 | 0 |
| vintage Keuffel & Esser K+E Slide Rule 4058C B | $9.99 | 11-Dec-2007 | 0 |
| "Lot of 3 var.slide rules,2 have cases,K&E,P&E | $9.99 | 02-Dec-2007 | 0 |
| Vintage Keuffel & Esser Co Polyphase Duplex Sl | $9.99 | 30-Dec-2007 | 0 |
| Keuffel& Esser Slide Rule #4041 | $9.99 | 01-Dec-2007 | 0 |
| Vintage Keuffel & Esser 4083-3 Wood Slide Rule | $9.99 | 02-Dec-2007 | 0 |
| VINTAGE KEUFFEL&ESSER SLIDE RULE ORIGINAL LEAT | $9.95 | 02-Dec-2007 | 0 |
| K&E Keuffel & Esser Co N4081 Slide Rule Manual | $9.44 | 18-Dec-2007 | 0 |
| K&E Keuffel & Esser Co N4081 Slide Rule Manual | $9.44 | 25-Dec-2007 | 0 |
| OLD KEUFFEL & ESSER 4088-3 SLIDE RULE W/ CASE | $9.00 | 05-Dec-2007 | 0 |
| "Old Keuffel & Esser""The Polyphase Slide Rule | $8.99 | 03-Dec-2007 | 0 |
| KEUFFEL & ESSER SLIDE RULE W/ LEATHER CASE - 4 | $8.95 | 09-Dec-2007 | 0 |
| Vintage K + E Slide Rule & Case | $8.32 | 16-Dec-2007 | 0 |
| Vintage K + E Slide Rule & Case | $8.32 | 09-Dec-2007 | 0 |
| K&E 4081 SLIDE RULE MANUAL 1939 LOG LOG DUPLEX | $7.99 | 17-Dec-2007 | 0 |
| ANTIQUE KEUFFEL & ESSER NY SLIDE RULE PAT JUNE | $7.99 | 18-Dec-2007 | 0 |
| Vintage Wooden Kueffel & Esser Beginners Slide | $7.99 | 07-Dec-2007 | 0 |
| Keuffel & Esser KE 4058-W Beginner's Slide Rul | $6.99 | 06-Dec-2007 | 0 |
| Vintage Keuffel & Esser Slide Rule Manual 1924 | $6.99 | 16-Dec-2007 | 0 |
| "COLE PARMER PH WAND ,PLUS K & E SLIDE RULER, | $6.00 | 01-Dec-2007 | 0 |
| KEUFFEL & ESSER BEGINNER'S SLIDE RULE in CASE | $5.99 | 07-Dec-2007 | 0 |
| K&E 4088-3 SLIDE RULE W/ LEATHER CASE Pat 1908 | $5.99 | 09-Dec-2007 | 0 |
| Vintage Keuffel & Esser Beginners Slide rule | $5.00 | 16-Dec-2007 | 0 |
| KEUFFEL & ESSER VERY EARLY SLIDE RULES PAT APP | $5.00 | 09-Dec-2007 | 0 |
| 1937 MANNHEIM SLIDE RULE Manual by KEUFFEL & E | $5.00 | 17-Dec-2007 | 0 |
| Vintage Keuffel & Esser Slide rule | $5.00 | 16-Dec-2007 | 0 |
| K & E BEGINNER'S SLIDE RULE N4058W LATE 40'S | $4.99 | 19-Dec-2007 | 0 |
| K&E POLYPHASE SLIDE RULE MANUAL..NO RESERVE | $4.99 | 05-Dec-2007 | 0 |
| Keuffel & Esser Co. NY Beginner's SLIDE RULE 4 | $4.99 | 02-Dec-2007 | 0 |
| K&E KEUFFEL & ESSER SLIDE RULE N4053-3 POLYPHA | $4.99 | 10-Dec-2007 | 0 |
| Keuffel & Esser Log Duplex Decitrig Slide Rule | $4.99 | 04-Dec-2007 | 0 |
| 1939 K & E KEUFFEL & ESSER SLIDE RULE 4071 MAN | $4.50 | 23-Dec-2007 | 0 |
| K&E Keuffel & Esser Co N4081 Slide Rule Manual | $4.44 | 18-Dec-2007 | 0 |
| Vintage Keuffel & Esser Slide Rule Manual 1924 | $3.99 | 30-Dec-2007 | 0 |
| "Keuffel & Esser Co., New York Slide Ruler" | $3.95 | 08-Dec-2007 | 0 |
| Keuffel & Esser Slide Rule Manual Log Duplex D | $2.95 | 16-Dec-2007 | 0 |
| K&E N4058W Slide Rule w/ case | $1.00 | 08-Dec-2007 | 0 |
| K&E N4058W Slide Rule w/ case | $1.00 | 14-Dec-2007 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $0.99 | 16-Dec-2007 | 0 |
| K & E KEUFFEL & ESSER CO SLIDE RULE 4098 A LEA | $0.99 | 12-Dec-2007 | 0 |
| 1924 KEUFFEL & ESSER SLIDE RULE ORIG LEATHER C | $0.99 | 12-Dec-2007 | 0 |
| Old slide rule: K&E cursor w/Lawrence Engineer | $0.99 | 01-Dec-2007 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $0.99 | 25-Dec-2007 | 0 |
| US PATENT for K&E SLIDERULE 1913 slide rule Ke | $0.99 | 02-Dec-2007 | 0 |
| Keuffel & Esser Log Duplex Decitrig SLIDE RULE | $0.01 | 14-Dec-2007 | 0 |