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Vintage Keuffel & Esser (K+E) USA 4181-1 7" Slide Rule 1947 Leather Case
Vintage Keuffel & Esser (K+E) USA 4181-1 7" Slide Rule 1947 Leather Case

$50.91

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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

$93.49

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Vtg 1947 K&E Keuffel & Esser 7" SLIDE RULE 4181-1 Original Green Leather Case
Vtg 1947 K&E Keuffel & Esser 7" SLIDE RULE 4181-1 Original Green Leather Case

$49.95

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

$25.19

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Vintage 1940's K & E Keuffel and Esser 4181-3 Slide Rule With Green Leather Case
Vintage 1940's K & E Keuffel and Esser 4181-3 Slide Rule With Green Leather Case

$14.99

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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

$22.40

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Vintage K&E Keuffel & Esser 4181-3 Slide Rule + Leather Case Copyright 1947 USA
Vintage K&E Keuffel & Esser 4181-3 Slide Rule + Leather Case Copyright 1947 USA

$29.95

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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

$29.99

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

$32.00

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Vintage Keuffel & Esser (K+E) USA 4181-1 7" Slide Rule Leather Case 1947
Vintage Keuffel & Esser (K+E) USA 4181-1 7" Slide Rule Leather Case 1947

$65.00

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Giant K&E Keuffel & Esser Classroom Display Working Slide Rule 86” 7 Feet Long
Giant K&E Keuffel & Esser Classroom Display Working Slide Rule 86” 7 Feet Long

$449.00

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K & E - Keuffel & Esser 4088-1 Slide Rule Antique Calculation Ruler
K & E - Keuffel & Esser 4088-1 Slide Rule Antique Calculation Ruler

$21.99

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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

$21.99

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K&E 4181-3 Plastic Slide Rule Original Green Leather Case & BOX Keuffel & Esser
K&E 4181-3 Plastic Slide Rule Original Green Leather Case & BOX Keuffel & Esser

$33.99

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K&E 4181-3 Ivorite Slide Rule Box Manual Leather Sheath Complete K+E Pocke
K&E 4181-3 Ivorite Slide Rule Box Manual Leather Sheath Complete K+E Pocke

$69.45

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K&E Keuffel & Esser 68-1130 Slide Rule w/ Leather Case Deci Lon 5 Free Shipping
K&E Keuffel & Esser 68-1130 Slide Rule w/ Leather Case Deci Lon 5 Free Shipping

$225.00

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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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K&E Keuffel & Esser 4181-3 Slide Rule in Orange Leather Case Good Condition
K&E Keuffel & Esser 4181-3 Slide Rule in Orange Leather Case Good Condition

$24.99

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Vintage Keuffel & Esser Co. K&E Slide Rule 102 Cooke Radio w Case Made in USA
Vintage Keuffel & Esser Co. K&E Slide Rule 102 Cooke Radio w Case Made in USA

$22.00

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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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Keuffel & Esser Co. Slide Rule 7” Length Copyright 1947 Model 4181-1 Preowned.
Keuffel & Esser Co. Slide Rule 7” Length Copyright 1947 Model 4181-1 Preowned.

$26.95

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K&E 4088-3 slide rule 10-inch (S-1239)
K&E 4088-3 slide rule 10-inch (S-1239)

$19.99

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Vintage 1947 Keuffel & Esser 4181-1 Log Log Duplex Decitrig Slide Rule w/ Manual
Vintage 1947 Keuffel & Esser 4181-1 Log Log Duplex Decitrig Slide Rule w/ Manual

$35.00

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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

$34.99

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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

$89.99

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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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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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Vintage K&E Keuffel & Esser slide rule 16-1892 in original pouch
Vintage K&E Keuffel & Esser slide rule 16-1892 in original pouch

$29.99

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Antique 1900's Keuffel & Esser 12" Slide Rule Model 4088-3 w/Case Vintage Tools
Antique 1900's Keuffel & Esser 12" Slide Rule Model 4088-3 w/Case Vintage Tools

$63.75

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Vtg Keuffel & Esser 4181-3 Ivorite Slide Rule Log Log Duplex Decitrig Made USA⭐️
Vtg Keuffel & Esser 4181-3 Ivorite Slide Rule Log Log Duplex Decitrig Made USA⭐️

$48.89

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K&E Keuffel & Esser Co. 1947 Log Log Duplex Vector Slide Rule 4080-3 w/Manual
K&E Keuffel & Esser Co. 1947 Log Log Duplex Vector Slide Rule 4080-3 w/Manual

$61.19

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K&E Log Log Duplex Trig Slide Rule- 1943, No 4080
K&E Log Log Duplex Trig Slide Rule- 1943, No 4080

$5.00

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

$11.30

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Vintage Keuffel & Esser Co. K&E Slide Rule 4088-3 With Leather Case Pat 1900-08
Vintage Keuffel & Esser Co. K&E Slide Rule 4088-3 With Leather Case Pat 1900-08

$24.95

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Keuffel & Esser K&E 68 1617 Polyphase Slide Rule With Case
Keuffel & Esser K&E 68 1617 Polyphase Slide Rule With Case

$25.95

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Mint In Box Vintage Keuffel Esser K&E Co Slide Rule Magnifier 4185B Made in NY
Mint In Box Vintage Keuffel Esser K&E Co Slide Rule Magnifier 4185B Made in NY

$59.99

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Vtg Rare 1947 K&E Slide Rule 4081-3 LOG LOG DUPLEX DECITRIG KEUFFEL & KESSER CO.
Vtg Rare 1947 K&E Slide Rule 4081-3 LOG LOG DUPLEX DECITRIG KEUFFEL & KESSER CO.

$89.85

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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 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

$33.00

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

$101.99

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

$100.00

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VTG RARE 1947 K&E Slide Rule 4081-3 LOG LOG DUPLEX DECITRIG KEUFFEL & KESSER CO.
VTG RARE 1947 K&E Slide Rule 4081-3 LOG LOG DUPLEX DECITRIG KEUFFEL & KESSER CO.

$39.95

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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 Slide Rule 4181-1 , 1947 Made In U.S.
Keuffel & Esser Slide Rule 4181-1 , 1947 Made In U.S.

$35.00

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

$69.88

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K&E Slide Rule 4058W Original Leather Case complete Made in the USA
K&E Slide Rule 4058W Original Leather Case complete Made in the USA

$21.75

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

$99.99

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Hard To Find K&E Keuffel & Esser 4133 Roylance Electrical Mannheim Slide Rule
Hard To Find K&E Keuffel & Esser 4133 Roylance Electrical Mannheim Slide Rule

$98.00

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Keuffel & Esser K&E 20-inch "Mystery" Slide Rule w/ side K scale- Serial #924660
Keuffel & Esser K&E 20-inch "Mystery" Slide Rule w/ side K scale- Serial #924660

$299.99

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VINTAGE K&E Keuffel & Esser Slide Rule 4095-3, USA W Manual & Case
VINTAGE K&E Keuffel & Esser Slide Rule 4095-3, USA W Manual & Case

$19.95

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Vintage Keuffel & Esser K&E Slide Rule 4083-3
Vintage Keuffel & Esser K&E Slide Rule 4083-3

$15.00

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Vtg K&E 4181-3 12" LogLog Decitrig Duplex Slide Rule & Case
Vtg K&E 4181-3 12" LogLog Decitrig Duplex Slide Rule & Case

$30.00

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Vintage Keuffel & Esser Co. K&E Slide Rule 4081-3 Made in USA 151500
Vintage Keuffel & Esser Co. K&E Slide Rule 4081-3 Made in USA 151500

$14.95

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Keuffler Esser Co. N.Y. K&E Slide Rule 4092-3 With Leather Case
Keuffler Esser Co. N.Y. K&E Slide Rule 4092-3 With Leather Case

$27.99

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1948 4th Ed K+E 4080-3 Slide Rule Black Leather Case 10" Mahogany Duplex Vintage
1948 4th Ed K+E 4080-3 Slide Rule Black Leather Case 10" Mahogany Duplex Vintage

$15.99

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VTG RARE 1947 K&E Slide Rule 4081-3 LOG LOG DUPLEX DECITRIG KEUFFEL & KESSER CO.
VTG RARE 1947 K&E Slide Rule 4081-3 LOG LOG DUPLEX DECITRIG KEUFFEL & KESSER CO.

$40.00

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Keuffel Esser Co K&E Slide Rule Lot of 3 - N4083-3S, 4094 Merchant & 4098
Keuffel Esser Co K&E Slide Rule Lot of 3 - N4083-3S, 4094 Merchant & 4098

$39.99

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K&E Polyphase slide rule 4053-5; with case; 20.5"; mahogany
K&E Polyphase slide rule 4053-5; with case; 20.5"; mahogany

$69.00

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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

$29.99

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Keuffel & Esser K & E 4080-3 Log Log Duplex Trig Slide Rule W/ Case USA Vintage
Keuffel & Esser K & E 4080-3 Log Log Duplex Trig Slide Rule W/ Case USA Vintage

$34.99

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

$20.26

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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 K&E Keuffel & Esser 4081-3 Slide rule W/ Pickett Case USA 1947
Vintage K&E Keuffel & Esser 4081-3 Slide rule W/ Pickett Case USA 1947

$24.99

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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

$45.89

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

$14.99

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K&E Keuffel & Esser Co NY Slide Rule Polyphase 4088-3
K&E Keuffel & Esser Co NY Slide Rule Polyphase 4088-3

$16.99

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1927 Keuffel & Esser K+E Mannheim Slide Rule Self Teaching Manual with Tables
1927 Keuffel & Esser K+E Mannheim Slide Rule Self Teaching Manual with Tables

$14.99

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Vintage K&E Keuffel & Esser N4081-3 Slide Rule with Leather Case 1947
Vintage K&E Keuffel & Esser N4081-3 Slide Rule with Leather Case 1947

$21.00

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VTG K&E Pocket Slide Rule 4098A Instructions 1936 The Slide Rule 1923 Book Lot
VTG K&E Pocket Slide Rule 4098A Instructions 1936 The Slide Rule 1923 Book Lot

$107.88

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K&E Keuffel & Esser Co NY Slide Rule in Leather Case 4088-3 Antique Vintage
K&E Keuffel & Esser Co NY Slide Rule in Leather Case 4088-3 Antique Vintage

$15.00

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K&E N4081-3 Log Log Duplex Decitrig Slide Rule Bamboo w/ Leather Case LOT 4-417
K&E N4081-3 Log Log Duplex Decitrig Slide Rule Bamboo w/ Leather Case LOT 4-417

$16.00

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Vintage Keuffel & Esser Slide Rule Polyphase Duplex Trig. 4070-3 Leather Case
Vintage Keuffel & Esser Slide Rule Polyphase Duplex Trig. 4070-3 Leather Case

$14.95

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VTG Keuffel & Esser Co. Mannheim Linear Slide Rule 4045 1900 Orig Case
VTG Keuffel & Esser Co. Mannheim Linear Slide Rule 4045 1900 Orig Case

$12.00

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Keuffel Esser K&E 4090-3 Slide Rule
Keuffel Esser K&E 4090-3 Slide Rule

$11.95

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Vintage Slide Rule Keuffel & Esser K&E Beginner's 4058W Ruler W Original Case
Vintage Slide Rule Keuffel & Esser K&E Beginner's 4058W Ruler W Original Case

$18.00

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K & E 4088-3 slide rule 10-inch with sheath (S-1230)
K & E 4088-3 slide rule 10-inch with sheath (S-1230)

$18.99

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Keuffel & Esser K&E 4092-3 Log Log Duplex Slide Rule Leather & Case
Keuffel & Esser K&E 4092-3 Log Log Duplex Slide Rule Leather & Case

$19.99

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Vintage 1940s KEUFFEL & ESSER 4080-3 Log Log Duplex Trig SLIDE RULE Leather Case
Vintage 1940s KEUFFEL & ESSER 4080-3 Log Log Duplex Trig SLIDE RULE Leather Case

$29.99

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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

$119.00

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Keuffel & Esser K&E 1947 Log Log Duplex Vector Slide Rule Leather Case N4083-3
Keuffel & Esser K&E 1947 Log Log Duplex Vector Slide Rule Leather Case N4083-3

$49.99

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Keuffel & Esser K & E 4080-3 Log Log Duplex Trig Slide Rule W/ Case USA Vintage
Keuffel & Esser K & E 4080-3 Log Log Duplex Trig Slide Rule W/ Case USA Vintage

$40.04

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

$27.99

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

$24.00

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Vintage Keuffel & Esser K+E Slide Rule 4088-3 with Leather Case -
Vintage Keuffel & Esser K+E Slide Rule 4088-3 with Leather Case -

$19.99

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Keuffel & Esser K&E Indicator Log Duplex Vector Slide Rule Soroban Abacus Leads+
Keuffel & Esser K&E Indicator Log Duplex Vector Slide Rule Soroban Abacus Leads+

$69.99

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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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Antique K+E Keuffel & Esser Wood Slide Rule Model N4041 Pat. 1900 1915
Antique K+E Keuffel & Esser Wood Slide Rule Model N4041 Pat. 1900 1915

$21.74

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Vintage Keuffel & Esser K&E Pocket Slide Rule 4161 Box Case Manual
Vintage Keuffel & Esser K&E Pocket Slide Rule 4161 Box Case Manual

$49.00

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Vintage K & E Wood Slide Rule Keuffel & Esser Co 4058W w/ Original Vinyl Case
Vintage K & E Wood Slide Rule Keuffel & Esser Co 4058W w/ Original Vinyl Case

$11.95

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Vintage Keuffel & Esser Co. K&E Slide Rule 4088-3 With Leather Case Made in USA
Vintage Keuffel & Esser Co. K&E Slide Rule 4088-3 With Leather Case Made in USA

$27.95

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Vintage Keuffel & Esser Co. K&E Slide Rule 4055 With Leather Case Made in USA
Vintage Keuffel & Esser Co. K&E Slide Rule 4055 With Leather Case Made in USA

$18.00

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VINTAGE 1947 KEUFFEL & ESSER CO K&E SLIDE RULE 4181-3 Original Leather Case USA
VINTAGE 1947 KEUFFEL & ESSER CO K&E SLIDE RULE 4181-3 Original Leather Case USA

$25.99

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early 1930's K+E Slide Rule N4053-3 Brown Leather Case Keuffel Esser Engineering
early 1930's K+E Slide Rule N4053-3 Brown Leather Case Keuffel Esser Engineering

$19.50

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Keuffel Esser K & E Deci-Lon Slide Rule 68 1100 Original Box Leather Case Book
Keuffel Esser K & E Deci-Lon Slide Rule 68 1100 Original Box Leather Case Book

$250.00

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K&E No. 4081 Manual Log Log Duplex Decitrig Slide Rule Keuffel & Esser
K&E No. 4081 Manual Log Log Duplex Decitrig Slide Rule Keuffel & Esser

$10.00

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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

$26.00

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Old 1908 Keuffel & Esser K&E 4088-3 Log Duplex Trig Slide Rule & Case - USA
Old 1908 Keuffel & Esser K&E 4088-3 Log Duplex Trig Slide Rule & Case - USA

$47.99

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K+E 4080-3 Log Duplex Trig Slide Rule w Leather Case Keuffel Esser Vintage Used
K+E 4080-3 Log Duplex Trig Slide Rule w Leather Case Keuffel Esser Vintage Used

$38.24

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