- $250.00 Post and K&E Slide Rules + Books, Parts
- $28.00 Vintage K & E Doric 9068 Slide Rule
- $29.95 Keuffel & Esser K&E 4081-3 Log Duplex Decitrig Slide Rule W/ Case free shipping
- $9.47 K & E 4054 Slide Rule Keuffel & Esser Leather Case Vintage
- $19.50 Vintage Keuffel & Esser K+E Slide Rule 4053-3 Hard Leather Case, 10 1/2”
- $29.95 KEUFFEL & ESSER K & E 9068 DORIC DUPLEX SLIDE RULE W. LEATHER CASE, 6-5/8" LONG
- $23.75 Keuffel & Esser K&E K+E GP12 GP 12 Slide Rule with Slide
- $40.00 Vintage Keuffel & Esser Co. K&E Slide Rule 4083-3 With Leather Case Made in USA
- $23.99 Vintage Keuffel & Esser Co. K-12 Prep K + E Slide Rule #681892 W/ Case
- $40.00 VINTAGE 1938 KEUFFEL & ESSER CO NY SLIDE RULE 4092-3 Original Leather Case USA
- $199.99 Vintage KEUFFEL & ESSER K&E 68-1130 Pocket Deci-Lon 5 Slide Rule w/ Leather Case
- $18.00 K&E Keuffel & Esser 4092 Slide Rule
- $35.00 Keuffel & Esser Co. K&E 4181-1 Slide Rule 7" With Pouch USA 🇺🇸 1947
- $70.00 Vintage K&E Keuffel & Esser 68 1608 / 1613 Slide Ruler Green Leather Case W/ Box
- $74.95 Keuffel & Esser K+E Slide Rules Deci-Lon An Instruction Manual Hardcover
- $59.95 VTG Keuffel & Esser Co 4081-3 Slide Rule & Leather M.I.T. Case prob 1939 READ
- $39.99 Vintage K&E Keuffel Esser Model 4081-3S Slide Rule W/ Leather Case & Box
- $44.95 Vintage K+E Slide Rules Manual Engineering Science Instruction Pickett 38 Lot
- $36.50 Keuffel & Esser K&E 4081-3 Slide Rule - Log Log Duplex Decitrig - Made In USA
- $19.99 Vintage Keuffel & Esser K+E Slide Rule 4053-3 Polyphase With Box Sheath
- $399.99 Keuffel & Esser K&E 20-inch "Mystery" Slide Rule w/ side K scale- Serial #924660
- $34.99 Vintage K&E Polyphase Duplex Scientific Slide Rule W/Original Case 249897 USA
- $33.82 Keuffel & Esser K&E Log Log Duplex 4083-3S Slide Rule Vintage No Name 2nd Rule
- $39.88 K & E Keuffel & Esser Vintage Slide Rule Model No. 481-3 Leather Case, 1947, USA
- $29.75 B18 K&E Keuffel & Esser 9068 Doric Pocket Slide Rule with Slip case
- $64.99 Vintage Keuffel & Esser Co. K&E Slide Rule 4083-3 With Leather Case & Belt Clip
- $46.99 1947 K&E Keuffel Esser Log Log Duplex Decitrig Slide Rule 4081-3S w/Case, Manual
- $36.00 K&E 4070-3 Log Log Duplex Trig Slide Rule with Leather Case Manual Box Nice! AA
- $69.97 Lot Of 2 Vntg Keuffel & Esser K&E 4081-3 & Dietzgen Slide Ruler Case & 1 Manual
- $148.95 Keuffel & Esser Slide Rule 68-1497 Polyphase Decitrig Duplex w/ Leather Case K&E
- $75.00 Antique 1900's Keuffel & Esser 12" Slide Rule Model 4088-3 w/Case Vintage Tools
- $37.60 Vintage Keuffel & Esser K&E N4083-3 Log Log Duplex Decitrig Slide Ruler and Case
- $34.99 1947 K&E Keuffel & Esser Slide Rule N4081-3 Log Duplex Decitrig USA Leather Case
- $14.95 K&E Keuffel & Esser Co. 1947 4081-3 Log Log Duplex Decitrig Slide Rule w/ Case
- $39.60 B18 K&E Keuffel & Esser 4053-5 Slide Rule with Leather case
- $49.99 VINTAGE K&E EVER THERE SLIDE RULE 1936 With Box And Papers 4097B
- $44.97 Vintage K&E Keuffel & Esser Model 4081-3 Slide Rule with Case Copyright 1947
- $32.95 Vintage K&E 9068 Doric Pocket Duplex slide rule 1949-1951~Keuffel & Esser~6-3/4"
- $33.68 VTG K&E Beginners Slide Rule 4058 W Keuffel & Esser Box
- $495.00 Vintage Keuffel & Esser N4080-3S Log Log Duplex Trig Slide Rule w/ Leather Case
- $24.99 K&E Keuffel & Esser 4088-3 Log Duplex Decitrig Slide Rule With Leather Case
- $65.00 Vintage Keuffel Esser K&E 20" Slide Rule 4053-5, 68-1607 Green Leather Case Rare
- $21.99 early 1930's K+E Slide Rule N4053-3 Brown Leather Case Keuffel Esser Engineering
- $25.99 Vintage Keuffel & Esser K+E Slide Rule 4053-3 Polyphase Leather Box Made in USA
- $22.00 Vintage Keuffel & Esser K+E Slide Rule #68-1210 Log Log Duplex Decitrig c.1947
- $35.97 Vintage K&E 4083-3 and Vintage Sterling No. 594 Slide Rules with cases
- $44.99 Lot of 3 Slide Rules Dietzgen Maniphase AW Faber 379 KE Keuffel Esser w/ Cases
- $24.99 Vintage SLIDE RULE: K & E N4058W Original Sleeve
- $69.99 Keuffel & Esser 4045 - Scarce K&E 16-inch Slide Rule - Circa 1924 Serial #161695
- $47.99 Vintage 1947 K&E Keuffel Esser Model 4081-3S Slide Rule Log Duplex Decitrig Case
- $34.95 Keuffel & Esser K+E Slide Rule 4081-3 Log Log Duplex Decitrig 1947 Leather Case
- $17.99 Vintage Keuffel & Esser Co K&E 4053-3 w/Leather Case & Sterling Slide Rule
- $19.50 Vintage Keuffel & Esser KE N4058W Beginners Slide Rule w/ Case Made in USA
- $199.49 Vintage K&E KEUFFEL & ESSER 68-1130 Pocket Deci-Lon 5 Slide Rule w/ Leather Case
- $36.95 K&E Slide Rule Keuffel & Esser N4081-3 Log Log Duplex Decitrig Leather Case 1947
- $159.99 Keuffel & Esser Slide Rule - Model 68-1130 - Vintage Leather Case
- $24.94 Vintage Keuffel & Esser Co Polyphase Wooden Slide Rule 4053-3 10" Patent Pending
- $208.15 Vintage KEUFFEL & ESSER K&E 68-1130 Pocket Deci-Lon 5 Slide Rule & Leather Case
- $40.00 VTG RARE 1947 K&E Slide Rule 4081-3 LOG LOG DUPLEX DECITRIG KEUFFEL & KESSER CO.
- $15.00 Vintage Keuffel Esser Slide Rule 4080-3 Log Log Duplex Trig Made in US K & E
- $9.00 Vtg 1947 K&E Log Log Duplex Decitrig Slide Rule #4081 MANUAL ONLY * Orange Cover
- $18.99 Keuffel & Esser Vintage Slide Ruler K&E Slide Rule Leather Case 4150-1
- $110.00 K E Log Log Duplex Decitric Slide Rule 4081 3S Mint w Leather Case, Box, Manual
- $5.99 Keuffel & Esser K&E Slide Rule 4088-3 Patent 1908 w/ Leather Case
- $5.00 K&E Keuffel & Esser VTG Slide Rule N4056-3 MISSING CURSOR
- $19.98 K&E Co 1922-1930 Slide Rule 4088-1 Polyphase Duplex Mahogany Celluloid 295995
- $17.50 Vintage Slide Rules K&E 4081-3, Lawrence Engineering Deluxe
- $84.99 Keuffel & Esser 4045 - Scarce K&E 16-inch Slide Rule - Serial #46590 Circa 1924
- $10.00 Vintage Slide Rule: K & E 4097B / 4097 B in Leather case, cracked AS-IS K&E
- $64.99 K&E Keuffel & Esser Slide Rule with Black Leather Case Model 4181-1 - Very Nice
- $14.99 Vintage Keuffel & Esser #4088-3 Slide Rule w/Leather Case, Made in USA
- $8.50 KEUFFEL & ESSER LOGO ENAMEL LAPEL PIN & DECAL SET K+E SLIDE RULE
- $8.50 K&E KEUFFEL & ESSER SLIDE RULE 12" 4092-3 Read note
- $29.99 K+E Vintage Ivorite Slide Rule With Leather Sheath, USA
- $67.10 Vintage 1961 Keuffel & Esser Deci-Lon 10 Slide Rule K&E Leather Case 68-1100
- $45.00 Lot of 2 Vintage K&E Slide Rules Book 1962 Kueffel & Esser Co. 1964 Robert Marks
- $19.99 Keuffel and Esser K&E 4081-3 Log Log Duplex Decitrig Slide Rule with Case
- $19.95 KEUFFEL & ESSER Slide Rule LOG LOG DUPLEX DECITRIG 4081-3 NO CASE
- $14.95 K&E No. 4081 Manual Log Log Duplex Decitrig Slide Rule Keuffel & Esser
- $25.99 Vintage Keuffel & Esser K&E N4053-3 10" Long Slide Rule w/ Case VTG U.S.A. READ
- $34.99 K&E 68 1617 Keuffel & Esser 10" Slide Rule & case
- $9.95 Vtg K & E Manual Log Log Duplex Decitrig Slide Rule Manual N4081 Keuffel Esser
- $140.00 K&E Keuffel & Esser 4088-5 20 inch Duplex Slide Rule AGC lot 66, 100+ years old
- $4.00 KEUFFEL & ESSER N4058W BEGINNERS SLIDE RULE & CASE
- $15.99 Vintage Slide Rule Keuffel & Esser K&E K-12 Prep 4158, Instructions
- $7.00 Antique Keuffel & Esser Co NY Slide Rule - 12 1/2"
- $33.00 B18 K&E Keuffel & Esser 4092-3 Slide Rule with Leather case
- $49.95 VTG 1952 K+E Keuffel & Esser 4161-1 Slide Rule With Original Case Instructions
- $10.00 Vintage Keuffel & Esser K12 Prep Slide Rule Manual 681892 Manual
- $49.99 K&E Keuffel Esser- Slide Rule W/Box and Manual- K 9 Prep- 68 1892- Desk Model
- $29.00 Vintage K & E Keuffel & Esser Co. N. Y. 4054 Slide Rule Leather Case Drafting
- $395.00 VTG RARE 1947 K&E Slide Rule 4081-3 LOG LOG DUPLEX DECITRIG KEUFFEL & KESSER CO.
- $26.00 B18 K&E Keuffel & Esser Favorite 4056 Slide Rule with box case
- $16.00 Keuffel & Esser K&E 4053-3 Slide Rule With Leather Case - Made In USA
- $18.95 Vintage Slide Rule Keuffel & Esser with Case
- $25.99 Vintage Slide Rule K&E 4053 35 Keuffel Esser
- $119.99 Keuffel & Esser 4133 Roylance Electrical Slide Rule - Mid-1920's - Serial #69487
- $22.99 K&E Log Log Duplex Decitrig Slide Rule 4081-3 Leather Case Keuffel Esser
- $49.99 K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule c1947
- $119.95 Vintage 1950s K&E Keuffel Esser Model 4081-3S Slide Rule W/Box, Case and Manual.