keuffel-esser-slide-rule-4181-1

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K & E Keuffel & Esser Co. 4181-3 Slide Rule with Orange Leather Case
K & E Keuffel & Esser Co. 4181-3 Slide Rule with Orange Leather Case

$30.00

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B15 K&E Keuffel & Esser 4181 6" Pocket Slide Rule with Slip case
B15 K&E Keuffel & Esser 4181 6" Pocket Slide Rule with Slip case

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VINTAGE 1947 KEUFFEL & ESSER 4181-1 SLIDE RULE WITH CASE USA
VINTAGE 1947 KEUFFEL & ESSER 4181-1 SLIDE RULE WITH CASE USA

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B15 K&E Keuffel & Esser 4181 6" Pocket Slide Rule with Slip case
B15 K&E Keuffel & Esser 4181 6" Pocket Slide Rule with Slip case

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K&E KEUFFEL & ESSER Vintage 1947 Slide Rule LEATHER CASE MODEL 4181-1 NICE ONE
K&E KEUFFEL & ESSER Vintage 1947 Slide Rule LEATHER CASE MODEL 4181-1 NICE ONE

$87.99

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K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule with Leather Case
K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule with Leather Case

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Vintage K & E Keuffel and Esser 4181-3 Slide Rule w/ Leather Case
Vintage K & E Keuffel and Esser 4181-3 Slide Rule w/ Leather Case

$29.99

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K&E Keuffel & Esser 4181-3 Slide Rule in Original K&E Orange Leather case
K&E Keuffel & Esser 4181-3 Slide Rule in Original K&E Orange Leather case

$18.95

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K&E Keuffel & Esser 4181-3 Slide Rule in Orange Leather case
K&E Keuffel & Esser 4181-3 Slide Rule in Orange Leather case

$21.00

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K & E Keuffel & Esser Co. 4180-3 Slide Rule with 7 Page Manual & Leather Case
K & E Keuffel & Esser Co. 4180-3 Slide Rule with 7 Page Manual & Leather Case

$38.00

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Keuffel & Esser Co. 7 Inch Slide Rule Case Magnifier Green Leather 4181-1 1940s
Keuffel & Esser Co. 7 Inch Slide Rule Case Magnifier Green Leather 4181-1 1940s

$49.95

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K&E Keuffel & Esser 4181-3 Slide Rule with Black Leather Case
K&E Keuffel & Esser 4181-3 Slide Rule with Black Leather Case

$29.99

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KEUFFEL & ESSER N4081-3 SLIDE RULE Log Duplex Decitrig w/ Leather Case
KEUFFEL & ESSER N4081-3 SLIDE RULE Log Duplex Decitrig w/ Leather Case

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Keuffel Esser K&E Co Slide Rule Magnifier 4185C Vintage with box Made in NY
Keuffel Esser K&E Co Slide Rule Magnifier 4185C Vintage with box Made in NY

$49.99

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K&E KEUFFEL & ESSER SLIDE RULE Lot 4181-1c N4081-3 & 4054 Boxes Cases
K&E KEUFFEL & ESSER SLIDE RULE Lot 4181-1c N4081-3 & 4054 Boxes Cases

$99.99

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Vintage K&E Keuffel & Esser 4181-3 Slide Rule with Leather Case
Vintage K&E Keuffel & Esser 4181-3 Slide Rule with Leather Case

$19.99

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Vintage K&E Keuffel And Esser 4181-3 Slide Rule w/ Leather Case 1947 COOL
Vintage K&E Keuffel And Esser 4181-3 Slide Rule w/ Leather Case 1947 COOL

$24.99

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K&E 68 1100 Slide Rule w/Leather Case Keuffel & Esser Deci Lon 10
K&E 68 1100 Slide Rule w/Leather Case Keuffel & Esser Deci Lon 10

$50.00

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Vintage Keuffel & Esser Co. K&E Slide Rule 4081-3 With Leather Case Made in USA
Vintage Keuffel & Esser Co. K&E Slide Rule 4081-3 With Leather Case Made in USA

$24.99

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Vintage Keuffel & Esser 4181-3 Plastic Slide Rule Original Box Leather Case
Vintage Keuffel & Esser 4181-3 Plastic Slide Rule Original Box Leather Case

$63.00

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Keuffel & Esser 20 1/2" N-4053-3 Mahogany Wood Slide Rule in Case, Patent 1937
Keuffel & Esser 20 1/2" N-4053-3 Mahogany Wood Slide Rule in Case, Patent 1937

$24.99

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KEUFFEL & ESSER K&E 4053-3 SLIDE RULE with Green Leather Case With Booklet
KEUFFEL & ESSER K&E 4053-3 SLIDE RULE with Green Leather Case With Booklet

$24.99

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K & E Slide Rule 4181-3 w/ Leather Sheath Copyright 1947 by Keuffel & Esser
K & E Slide Rule 4181-3 w/ Leather Sheath Copyright 1947 by Keuffel & Esser

$28.00

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Keuffel+Esser 68 1791 Pocket Slide Rule Blk Leather Sheath, Manual, Original Box
Keuffel+Esser 68 1791 Pocket Slide Rule Blk Leather Sheath, Manual, Original Box

$29.99

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KEUFFEL & ESSER 21 1/4" Mahogany Wood Slide Rule, Pat. 1934232 in Case / Boxes
KEUFFEL & ESSER 21 1/4" Mahogany Wood Slide Rule, Pat. 1934232 in Case / Boxes

$79.95

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Keuffel & Esser 10 Deci Lon 68 1100 Slide Rule With Leather Case, K&E Made USA
Keuffel & Esser 10 Deci Lon 68 1100 Slide Rule With Leather Case, K&E Made USA

$52.00

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Keuffel & Esser No. 4090-3 Log Log Trig Duplex Slide Rule + Case + Extras
Keuffel & Esser No. 4090-3 Log Log Trig Duplex Slide Rule + Case + Extras

$23.00

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K & E Keuffel & Esser Co. 4181-3 Slide Rule with Leather Case
K & E Keuffel & Esser Co. 4181-3 Slide Rule with Leather Case

$34.99

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Keuffel & Esser Slide Rule Vintage K & E Beginners 4058c Wood Made In USA 1920s
Keuffel & Esser Slide Rule Vintage K & E Beginners 4058c Wood Made In USA 1920s

$13.43

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Keuffel & Esser K&E N4080-3 Log Log Duplex Trig Slide Rule W/ Brown Leather Case
Keuffel & Esser K&E N4080-3 Log Log Duplex Trig Slide Rule W/ Brown Leather Case

$44.99

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Keuffel & Esser 1740 Thacher Cylindrical Slide Rule
Keuffel & Esser 1740 Thacher Cylindrical Slide Rule

$600.00

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K&E Keuffel & Esser 4181-3 Slide Rule with Black Leather Case
K&E Keuffel & Esser 4181-3 Slide Rule with Black Leather Case

$30.00

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K&E 68 1100 Slide Rule Leather Case Keuffel & Esser Deci-Lon 10 1961
K&E 68 1100 Slide Rule Leather Case Keuffel & Esser Deci-Lon 10 1961

$69.99

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Vtg Keuffel & Esser K&E Polyphase Slide Rule N 4053-3 A Self Teaching Manual
Vtg Keuffel & Esser K&E Polyphase Slide Rule N 4053-3 A Self Teaching Manual

$8.99

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B15 K&E Keuffel & Esser 4181-3 Slide Rule with Green Leather case
B15 K&E Keuffel & Esser 4181-3 Slide Rule with Green Leather case

$24.00

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K&E Keuffel & Esser Slide Rule Leather Sheath Case Model 4181-1 VTG Engineering
K&E Keuffel & Esser Slide Rule Leather Sheath Case Model 4181-1 VTG Engineering

$75.00

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Keiffel and Esser slide rule model number 4181-1
Keiffel and Esser slide rule model number 4181-1

$25.00

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K&E Keuffel & Esser Slide Rule Leather Sheath Case Model 4181-1 VTG Engineering
K&E Keuffel & Esser Slide Rule Leather Sheath Case Model 4181-1 VTG Engineering

$75.00

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1938 Log Log Duplex Decitrig Slide Rule No 4081 Manual Keuffel & Esser Co
1938 Log Log Duplex Decitrig Slide Rule No 4081 Manual Keuffel & Esser Co

$19.95

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K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule with Leather Case
K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule with Leather Case

$34.95

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B15 K&E Keuffel & Esser 4098 6" Pocket Slide Rule with Slip case
B15 K&E Keuffel & Esser 4098 6" Pocket Slide Rule with Slip case

$15.00

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Vintage Keuffel Esser Slide Rule - Log Log Duplex Trig 4088-3 Complete Engraved
Vintage Keuffel Esser Slide Rule - Log Log Duplex Trig 4088-3 Complete Engraved

$36.45

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K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule
K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule

$17.95

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Keuffel Esser Pocket Slide Rule Pat 1.875.927
Keuffel Esser Pocket Slide Rule Pat 1.875.927

$12.00

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Vintage K&E Keuffel & Esser 4181-3 Slide Rule with Leather Case ©1947
Vintage K&E Keuffel & Esser 4181-3 Slide Rule with Leather Case ©1947

$25.00

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Vintage 1941 Keuffel & Esser 4053-3 Slide Rule with Magnifier and Leather Case
Vintage 1941 Keuffel & Esser 4053-3 Slide Rule with Magnifier and Leather Case

$48.00

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Keuffel and Esser Beginners Slide Rule N4058W K&E Made in USA with Original Case
Keuffel and Esser Beginners Slide Rule N4058W K&E Made in USA with Original Case

$9.95

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Antique Keuffel & Esser 4041 Slide Rule Mannheim big ten Inch Mahogany
Antique Keuffel & Esser 4041 Slide Rule Mannheim big ten Inch Mahogany

$17.49

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Vintage K&E Keuffel Esser Model 4081-3 Slide Rule W/case & Book
Vintage K&E Keuffel Esser Model 4081-3 Slide Rule W/case & Book

$35.00

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K&E KEUFFEL & ESSER N-4053-3 SLIDE RULE w/Case & Box, Polyphase. USA.
K&E KEUFFEL & ESSER N-4053-3 SLIDE RULE w/Case & Box, Polyphase. USA.

$19.49

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KEUFFEL & ESSER N-4053-5 Mahogany Wood Slide Rule, Pat. 1934232 with Case
KEUFFEL & ESSER N-4053-5 Mahogany Wood Slide Rule, Pat. 1934232 with Case

$69.95

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K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule with Leather Case
K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule with Leather Case

$29.99

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Antique KEUFFEL & ESSER CO. POLYPHASE SLIDE RULE IN ORIGINAL CASE U.S.A. 4053-3
Antique KEUFFEL & ESSER CO. POLYPHASE SLIDE RULE IN ORIGINAL CASE U.S.A. 4053-3

$28.99

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B15 Keuffel & Esser 4081-3 12" Slide Rule with leather case
B15 Keuffel & Esser 4081-3 12" Slide Rule with leather case

$20.00

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Keuffel & Esser K&E Slide Rule 4088-3 Patent 1908 w/ Leather Case
Keuffel & Esser K&E Slide Rule 4088-3 Patent 1908 w/ Leather Case

$47.99

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Vintage Slide Rule K&E 4053 35 Keuffel Esser
Vintage Slide Rule K&E 4053 35 Keuffel Esser

$11.99

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Vintage KEUFFEL & ESSER N4092-3 SLIDE RULE 12.5” Antique +READ+
Vintage KEUFFEL & ESSER N4092-3 SLIDE RULE 12.5” Antique +READ+

$13.75

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Vintage KEUFFEL & ESSER Slide Rule Model N4053-3 K&E with Case ~ Made in USA
Vintage KEUFFEL & ESSER Slide Rule Model N4053-3 K&E with Case ~ Made in USA

$27.99

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Keuffel & Esser Beginner's Slide Rule N4058W Made In USA Clean
Keuffel & Esser Beginner's Slide Rule N4058W Made In USA Clean

$9.99

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Vintage 1950s Keuffel & Esser N4058-W Beginner's Simplex Slide Rule + Case G1
Vintage 1950s Keuffel & Esser N4058-W Beginner's Simplex Slide Rule + Case G1

$26.69

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Vintage K&E 68-1100 Slide Rule With Leather Case Keuffel Esser Deci- Lon
Vintage K&E 68-1100 Slide Rule With Leather Case Keuffel Esser Deci- Lon

$79.99

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Keuffel & Esser Beginner's Slide Rule N4058W Made In USA- Vintage
Keuffel & Esser Beginner's Slide Rule N4058W Made In USA- Vintage

$14.99

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Keuffel & Esser 4080-3 Log Log Trig Duplex 10" Mahogany Slide Rule S/N 262848
Keuffel & Esser 4080-3 Log Log Trig Duplex 10" Mahogany Slide Rule S/N 262848

$24.99

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K&E Keuffel & Esser Slide Rule 4088-3 Polyphase Duplex Pat 1900, 1908, 1915
K&E Keuffel & Esser Slide Rule 4088-3 Polyphase Duplex Pat 1900, 1908, 1915

$18.00

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VTG Keuffel & Esser K&E Favorite Slide Rule #4081 w/Hard Case - See Description
VTG Keuffel & Esser K&E Favorite Slide Rule #4081 w/Hard Case - See Description

$8.99

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Keuffel & Esser K+E Slide Rule 4081-3 Log Log Duplex Decitrig 1947 Leather Case
Keuffel & Esser K+E Slide Rule 4081-3 Log Log Duplex Decitrig 1947 Leather Case

$34.95

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Keuffel & Esser N4053-3 Wood Ruler Slide Rule
Keuffel & Esser N4053-3 Wood Ruler Slide Rule

$16.99

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Vintage KEUFFEL & ESSER N4053-3 SLIDE RULE 10.5” Antique Wood +SUPER NICE+
Vintage KEUFFEL & ESSER N4053-3 SLIDE RULE 10.5” Antique Wood +SUPER NICE+

$14.75

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VINTAGE WOOD K&E KEUFFEL & ESSER 20" N-4053-5 SLIDE RULE - Missing Curser
VINTAGE WOOD K&E KEUFFEL & ESSER 20" N-4053-5 SLIDE RULE - Missing Curser

$42.99

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Keuffel & Esser K+E Vintage Slide Rule N-4053-3 with Leather Case - Vintage
Keuffel & Esser K+E Vintage Slide Rule N-4053-3 with Leather Case - Vintage

$22.95

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Keuffel & Esser K+E Vintage Slide Rule N-4053-3 w/ Leather Case
Keuffel & Esser K+E Vintage Slide Rule N-4053-3 w/ Leather Case

$14.95

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Keuffel & Esser Slide Rule 4088-2 With Difficult to find stitched Leather Case
Keuffel & Esser Slide Rule 4088-2 With Difficult to find stitched Leather Case

$39.99

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Keuffel & Esser K+E 4053-3 Slide Rule in Leather Case, N4053-3
Keuffel & Esser K+E 4053-3 Slide Rule in Leather Case, N4053-3

$17.95

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Vintage K+E Keuffel & Esser Beginner's Slide Rule N4058W
Vintage K+E Keuffel & Esser Beginner's Slide Rule N4058W

$11.95

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LOT OF 2 Vintage K & E Keuffel & Esser Co. 4181-3 Slide Rule/ACU-MATH with Cases
LOT OF 2 Vintage K & E Keuffel & Esser Co. 4181-3 Slide Rule/ACU-MATH with Cases

$49.99

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1943 The Log Log Duplex Trig Slide Rule No. 4080 A Manual Keuffel & Esser Co
1943 The Log Log Duplex Trig Slide Rule No. 4080 A Manual Keuffel & Esser Co

$10.00

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Vintage Keuffel & Esser Beginners Slide Rule 4058W Cover K&E 10 5/8" Made NY USA
Vintage Keuffel & Esser Beginners Slide Rule 4058W Cover K&E 10 5/8" Made NY USA

$20.76

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K & E/Keuffel & Esser 10" #4161-3 Plastic Slide rule 018532 Black Leather
K & E/Keuffel & Esser 10" #4161-3 Plastic Slide rule 018532 Black Leather

$23.99

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1961 Keuffel & Esser Co. K-12 Prep Slide Rule With Case Manual Instruction 4158
1961 Keuffel & Esser Co. K-12 Prep Slide Rule With Case Manual Instruction 4158

$19.99

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Vintage KEUFFEL & ESSER 4088-3 Slide Rule With Case FREE SHIPPING
Vintage KEUFFEL & ESSER 4088-3 Slide Rule With Case FREE SHIPPING

$17.99

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Vintage KEUFFEL & ESSER SLIDE RULE N-4096 Desktop with Case Missing Slide
Vintage KEUFFEL & ESSER SLIDE RULE N-4096 Desktop with Case Missing Slide

$38.49

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Keuffel & Esser Vintage Slide Ruler K&E Slide Rule Black Leather Case 4097D USA
Keuffel & Esser Vintage Slide Ruler K&E Slide Rule Black Leather Case 4097D USA

$19.95

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Vintage Keuffel Esser KE 4081-3 Slide Rule Log Log Duplex Decitrig Box & Book
Vintage Keuffel Esser KE 4081-3 Slide Rule Log Log Duplex Decitrig Box & Book

$44.99

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1915-17 Keuffel & Esser 4088-3 Slide Rule In Case
1915-17 Keuffel & Esser 4088-3 Slide Rule In Case

$23.99

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Vintage Keuffel & Esser Beginners Slide Rule 4058W K&E Co USA - With Hard Case
Vintage Keuffel & Esser Beginners Slide Rule 4058W K&E Co USA - With Hard Case

$22.95

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Keuffel & Esser 4091-3 Slide Rule With Leather Case K&E Log Log Decitrig
Keuffel & Esser 4091-3 Slide Rule With Leather Case K&E Log Log Decitrig

$34.95

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K&E Keuffel Esser- Slide Rule W/Box and Manual- K 9 Prep- 68 1892- Desk Model
K&E Keuffel Esser- Slide Rule W/Box and Manual- K 9 Prep- 68 1892- Desk Model

$39.99

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Vintage 1961 K&E 68 1100 Slide Rule w/Leather Case Keuffel Esser Deci Lon
Vintage 1961 K&E 68 1100 Slide Rule w/Leather Case Keuffel Esser Deci Lon

$55.82

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Keuffel Esser KE Slide Rule 4081-3 Log Log Duplex Decitrig Leather Case Box USA
Keuffel Esser KE Slide Rule 4081-3 Log Log Duplex Decitrig Leather Case Box USA

$44.18

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Vintage K&E Keuffel & Esser Co N.Y. Polyphase Duplex Slide Rule Model 4088 Case
Vintage K&E Keuffel & Esser Co N.Y. Polyphase Duplex Slide Rule Model 4088 Case

$28.88

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Keuffel & Esser 4088-3 Slide Rule Pat June 5, '00 Dec 22 1908 Case Made in USA
Keuffel & Esser 4088-3 Slide Rule Pat June 5, '00 Dec 22 1908 Case Made in USA

$24.99

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Keuffel & Esser K&E Log Log Duplex 68 1215 Slide Rule W/Leather Case Old 4081-3S
Keuffel & Esser K&E Log Log Duplex 68 1215 Slide Rule W/Leather Case Old 4081-3S

$119.99

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Vintage Keuffel & Esser KE 4081-3 Log Log Duplex Decitrig Slide Rule Case Box
Vintage Keuffel & Esser KE 4081-3 Log Log Duplex Decitrig Slide Rule Case Box

$46.00

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Pickett N 3-ES Power Log Exponential Metal Slide Rule + Keuffel & Esser 4088-3
Pickett N 3-ES Power Log Exponential Metal Slide Rule + Keuffel & Esser 4088-3

$75.00

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K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule with Leather Case
K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule with Leather Case

$35.00

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Vintage K & E Keuffel Esser Slide Rule 4080-3 Log Log Duplex Trig 1947 USA
Vintage K & E Keuffel Esser Slide Rule 4080-3 Log Log Duplex Trig 1947 USA

$29.99

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VINTAGE KEUFFEL & ESSER (K&E) N4081-3 SLIDE RULE LOG LOG DUPLEX DECITRIG
VINTAGE KEUFFEL & ESSER (K&E) N4081-3 SLIDE RULE LOG LOG DUPLEX DECITRIG

$25.99

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Very Clean K&E 68 1100 Slide Rule w/ Leather Case Keuffel & Esser Deci Lon 10
Very Clean K&E 68 1100 Slide Rule w/ Leather Case Keuffel & Esser Deci Lon 10

$112.50

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1945 The Log Log Duplex Decitrig Slide Rule No. 4081 Keuffel & Esser Co.
1945 The Log Log Duplex Decitrig Slide Rule No. 4081 Keuffel & Esser Co.

$5.00

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VTG KEUFFEL & ESSER 4181-3 SLIDE RULE
VTG KEUFFEL & ESSER 4181-3 SLIDE RULE

$25.00

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