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Keuffel & Esser DECI-LON 68 1100 Slide Rule & Case c 1947, 1961 with Book
Keuffel & Esser DECI-LON 68 1100 Slide Rule & Case c 1947, 1961 with Book

$249.99

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

$59.00

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K&E 68 1100 Slide Rule w/ Leather Case Keuffel & Esser Deci Lon-Free Shipping
K&E 68 1100 Slide Rule w/ Leather Case Keuffel & Esser Deci Lon-Free Shipping

$74.95

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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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Vintage Keuffel & Esser KE SLIDE RULE #4055 w/Hard Case Early 20th Century
Vintage Keuffel & Esser KE SLIDE RULE #4055 w/Hard Case Early 20th Century

$18.00

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

$36.00

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VTG K&E 68 1100 Slide Rule W/ Leather Case Deci-Lon 10 Keuffel & Esser Ruler
VTG K&E 68 1100 Slide Rule W/ Leather Case Deci-Lon 10 Keuffel & Esser Ruler

$49.99

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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

$29.99

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Vintage Keuffel & Esser Duplex Slide Rule 4081-3 with Leather Case USA
Vintage Keuffel & Esser Duplex Slide Rule 4081-3 with Leather Case USA

$34.00

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Keuffel Esser Slide Rule N4081-3 Log Log Duplex Decitrig Leather Case Box
Keuffel Esser Slide Rule N4081-3 Log Log Duplex Decitrig Leather Case Box

$50.00

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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

$29.99

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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

$24.50

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

$29.95

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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

$127.49

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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

$50.99

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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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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

$67.99

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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

$40.00

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K&E Keuffel & Esser Slide Rule 4080-3 w/Leather Case ~1939-1947 ~ #771214
K&E Keuffel & Esser Slide Rule 4080-3 w/Leather Case ~1939-1947 ~ #771214

$42.00

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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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1947 K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule w/ Case USA
1947 K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule w/ Case USA

$19.99

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Vintage K+E Keuffel & Esser 4092-3 Slide Rule in Leather Case 1924 Pat. Date
Vintage K+E Keuffel & Esser 4092-3 Slide Rule in Leather Case 1924 Pat. Date

$17.09

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1947 K&E Keuffel & Esser Slide Rule N4081-3 Log Duplex Decitrig USA No Case
1947 K&E Keuffel & Esser Slide Rule N4081-3 Log Duplex Decitrig USA No Case

$19.00

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Vintage Keuffel & Esser 1947 Decitrig Slide Rule with Leather Case USA 68 1210
Vintage Keuffel & Esser 1947 Decitrig Slide Rule with Leather Case USA 68 1210

$39.67

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vintage keuffel esser slide rule 6 inch with case
vintage keuffel esser slide rule 6 inch with case

$22.00

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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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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

$23.74

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Vintage K+E Keuffel & Esser 4091-3 Slide Rule in Leather Case 489187
Vintage K+E Keuffel & Esser 4091-3 Slide Rule in Leather Case 489187

$29.74

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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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Vintage Keuffel and Esser K&E 4081-3 Log Log Duplex Decitrig Slide Rule w/Case
Vintage Keuffel and Esser K&E 4081-3 Log Log Duplex Decitrig Slide Rule w/Case

$15.99

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Vintage Keuffel & Esser Co. K&E Slide Rule 4081-3 With Original Case. READ
Vintage Keuffel & Esser Co. K&E Slide Rule 4081-3 With Original Case. READ

$27.17

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1947 Keuffel and Esser K&E 4081-3 Log Log Duplex Decitrig Slide Rule W/ Case
1947 Keuffel and Esser K&E 4081-3 Log Log Duplex Decitrig Slide Rule W/ Case

$39.95

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Vintage Keuffel Esser K&E Slide Rule 4083-3 Leather Case and Box
Vintage Keuffel Esser K&E Slide Rule 4083-3 Leather Case and Box

$36.99

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Keuffel & Esser Deci-Lon Slide Rule - Good Condition, Includes Leather Case
Keuffel & Esser Deci-Lon Slide Rule - Good Condition, Includes Leather Case

$100.00

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Keuffel Esser Slide Rule N4081-3 Log Duplex Decitrig Leather Case - (LXC10A)
Keuffel Esser Slide Rule N4081-3 Log Duplex Decitrig Leather Case - (LXC10A)

$61.99

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

$210.00

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VINTAGE K&E Keuffel & Esser Slide Rule 4081-3 USA
VINTAGE K&E Keuffel & Esser Slide Rule 4081-3 USA

$14.99

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VINTAGE - KEUFFEL & ESSER CO. POLYPHASE SLIDE RULE IN ORIGINAL CASE #4054
VINTAGE - KEUFFEL & ESSER CO. POLYPHASE SLIDE RULE IN ORIGINAL CASE #4054

$6.99

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Keuffel Esser K+E KE Doric Slide Rule Original Slipcase and Leather Sleeve 9068
Keuffel Esser K+E KE Doric Slide Rule Original Slipcase and Leather Sleeve 9068

$49.99

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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

$80.00

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KEUFFEL & ESSER K&E 4053-3 and More Lot SLIDE RULE with Green Leather Case x4
KEUFFEL & ESSER K&E 4053-3 and More Lot SLIDE RULE with Green Leather Case x4

$74.99

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Vintage KEUFFEL & ESSER SLIDE RULE N-4096 Desktop Standing on Cast Iron Feet
Vintage KEUFFEL & ESSER SLIDE RULE N-4096 Desktop Standing on Cast Iron Feet

$49.99

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vintage keuffel esser slide rule from West Point Military Academy 1961
vintage keuffel esser slide rule from West Point Military Academy 1961

$20.00

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

$34.00

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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

$38.67

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

$19.95

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Keuffel Esser KE Slide Rule 4083-3 Log Log Duplex Decitrig Leather Case Box USA
Keuffel Esser KE Slide Rule 4083-3 Log Log Duplex Decitrig Leather Case Box USA

$29.99

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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

$40.00

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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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1947 K&E Keuffel & Esser Slide Rule N4081-3 Log Duplex Decitrig USA Leather Case
1947 K&E Keuffel & Esser Slide Rule N4081-3 Log Duplex Decitrig USA Leather Case

$20.00

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1947 K&E Keuffel & Esser Slide Rule N4081-3 Log Duplex Decitrig USA Leather Case
1947 K&E Keuffel & Esser Slide Rule N4081-3 Log Duplex Decitrig USA Leather Case

$29.99

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Vintage - Keuffel & Esser Slide Rule - 4088-3S with Distressed Leather Case
Vintage - Keuffel & Esser Slide Rule - 4088-3S with Distressed Leather Case

$14.95

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Vintage Engineering Slide Rule Keuffel & Esser Co. With leather Case 1947 Wood
Vintage Engineering Slide Rule Keuffel & Esser Co. With leather Case 1947 Wood

$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 68 1210 Slide rule & Original Case 1947 K&E
Vintage Keuffel & Esser 68 1210 Slide rule & Original Case 1947 K&E

$48.10

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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

$42.49

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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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1956 Keuffel & Esser Co ins advertising booklet slide rule Don Herold
1956 Keuffel & Esser Co ins advertising booklet slide rule Don Herold

$9.99

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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

$109.00

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

$34.99

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Keuffel & Esser K+E Slide Rule 68-1210 Log Log Duplex Decitrig 1947 Leather +Box
Keuffel & Esser K+E Slide Rule 68-1210 Log Log Duplex Decitrig 1947 Leather +Box

$27.95

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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

$29.99

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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 Deci-Lon 10 Slide Rule 68-1100 with Case Keuffel & Esser Co
Vintage K&E Deci-Lon 10 Slide Rule 68-1100 with Case Keuffel & Esser Co

$59.99

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B18 K&E Keuffel & Esser 4092-3 Slide Rule
B18 K&E Keuffel & Esser 4092-3 Slide Rule

$17.99

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Keuffel & Esser Vintage Slide Ruler K&E Slide Rule Leather Case 4153-1
Keuffel & Esser Vintage Slide Ruler K&E Slide Rule Leather Case 4153-1

$28.49

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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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Early Keuffel & Esser K&E 4053-3 Wood Slide Rule w/ Leather Case - Pat 8/17/15
Early Keuffel & Esser K&E 4053-3 Wood Slide Rule w/ Leather Case - Pat 8/17/15

$45.99

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K+E/Keuffel+Esser 4161-1C Pocket Slide Rule Leather Sheath Manual Book/Complete
K+E/Keuffel+Esser 4161-1C Pocket Slide Rule Leather Sheath Manual Book/Complete

$35.00

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1947 K&E Keuffel & Esser Slide Rule N4081-3 Log Duplex Decitrig USA
1947 K&E Keuffel & Esser Slide Rule N4081-3 Log Duplex Decitrig USA

$25.00

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Keuffel & Esser K&E 4092-3 Log Log Duplex Slide Rule Leather Case Allen P. Bowie
Keuffel & Esser K&E 4092-3 Log Log Duplex Slide Rule Leather Case Allen P. Bowie

$28.00

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VINTAGE K&E Keuffel & Esser Slide Rule 4081-3 Log Log Duplex Decitrig 1947 USA
VINTAGE K&E Keuffel & Esser Slide Rule 4081-3 Log Log Duplex Decitrig 1947 USA

$66.50

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B15 K&E Keuffel & Esser Deci-Lon 10 Slide Rule 12" with leather case
B15 K&E Keuffel & Esser Deci-Lon 10 Slide Rule 12" with leather case

$55.00

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VINTAGE KEUFFEL & ESSER CO. Slide Rule 681617 With Leather Case USA Ruler
VINTAGE KEUFFEL & ESSER CO. Slide Rule 681617 With Leather Case USA Ruler

$25.00

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1947 K&E Keuffel & Esser Duplex Slide Rule N4071-3S
1947 K&E Keuffel & Esser Duplex Slide Rule N4071-3S

$21.00

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Vintage K&E Keuffel and Esser Co. 10 Deci-lon Slide Rule w/ Leather Case
Vintage K&E Keuffel and Esser Co. 10 Deci-lon Slide Rule w/ Leather Case

$44.99

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K&E Slide Rule US PATENT Art Print READY TO FRAME!!!! 1915 Keuffel & Esser K E
K&E Slide Rule US PATENT Art Print READY TO FRAME!!!! 1915 Keuffel & Esser K E

$9.95

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

$17.99

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VINTAGE K&E Keuffel & Esser Slide Rule 4081-3 Made In The USA- 1947- Log Log
VINTAGE K&E Keuffel & Esser Slide Rule 4081-3 Made In The USA- 1947- Log Log

$24.00

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K&E Keuffel & Esser Slide Rule 4088-3 w/ leather case has missing flap
K&E Keuffel & Esser Slide Rule 4088-3 w/ leather case has missing flap

$16.00

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K&E Keuffel & Esser VTG Slide Rule N4056-3 MISSING CURSOR
K&E Keuffel & Esser VTG Slide Rule N4056-3 MISSING CURSOR

$5.00

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VINTAGE KEUFFEL & ESSER SLIDE RULE N4053-3 IN LEATHER CASE
VINTAGE KEUFFEL & ESSER SLIDE RULE N4053-3 IN LEATHER CASE

$15.00

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Antique K&E (Keuffel Esser) 4092-3 Slide Rule w/Metal Cursor Bars + Damaged Case
Antique K&E (Keuffel Esser) 4092-3 Slide Rule w/Metal Cursor Bars + Damaged Case

$24.99

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

$27.99

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Keuffel & Esser Co N.Y. USA K&E 4092-3 Slide Rule
Keuffel & Esser Co N.Y. USA K&E 4092-3 Slide Rule

$39.99

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Keuffel Esser Slide Rule N4081-3 Log Duplex Decitrig USA Leather Pile signed
Keuffel Esser Slide Rule N4081-3 Log Duplex Decitrig USA Leather Pile signed

$36.00

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Vtg K+E 12.5" Slide Rule with Leather Case Keuffel & Esser No. 4081-3 FreeS&H
Vtg K+E 12.5" Slide Rule with Leather Case Keuffel & Esser No. 4081-3 FreeS&H

$44.00

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Vintage Doric K & E Co. 9068 Western Slide Rule
Vintage Doric K & E Co. 9068 Western Slide Rule

$15.00

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Vtg 1947 K&E Keuffel & Esser N4081-3 Log Log Duplex Decitrig Slide Rule w/ Case!
Vtg 1947 K&E Keuffel & Esser N4081-3 Log Log Duplex Decitrig Slide Rule w/ Case!

$19.99

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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

$109.00

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Keuffel & Esser K & E N4080-3 LOG LOG DUPLEX TRIG Slide Rule & Case
Keuffel & Esser K & E N4080-3 LOG LOG DUPLEX TRIG Slide Rule & Case

$29.99

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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

$55.00

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

$60.00

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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

$41.99

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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

$16.99

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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

$20.00

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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

$40.00

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

$34.99

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Vintage Keuffel & Esser #4056 Favorite Slide Rule with Original Case
Vintage Keuffel & Esser #4056 Favorite Slide Rule with Original Case

$25.49

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