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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

$200.00

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Rare Vintage 1930's Keuffel & Esser Kurtz 4090-3 Psychrometric Slide Rule w Case
Rare Vintage 1930's Keuffel & Esser Kurtz 4090-3 Psychrometric Slide Rule w Case

$150.00

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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 Co. 10” Slide Rule – GDC – N4053-3 – COLLECTIBLE-USEFUL
Vintage Keuffel & Esser Co. 10” Slide Rule – GDC – N4053-3 – COLLECTIBLE-USEFUL

$199.99

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

$15.00

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VINTAGE KEUFFEL ESSER SLIDE RULER (k47)
VINTAGE KEUFFEL ESSER SLIDE RULER (k47)

$15.99

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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

$175.00

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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, Keuffel & Esser Vtg N4041 Slide Rule & Case, Pat'd June 5, 1900, USA
K&E, Keuffel & Esser Vtg N4041 Slide Rule & Case, Pat'd June 5, 1900, USA

$55.58

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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

$19.99

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Vintage 1947 Keuffel Esser Log Log Duplex Vector Engineering Slide Ruler #4083-3
Vintage 1947 Keuffel Esser Log Log Duplex Vector Engineering Slide Ruler #4083-3

$17.76

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Vintage Engineering Keuffel & Esser Co. Slide Rule w Leather Cases ( Lot 3 )
Vintage Engineering Keuffel & Esser Co. Slide Rule w Leather Cases ( Lot 3 )

$20.00

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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

$35.99

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

$12.33

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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

$8.00

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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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Vintage K & E Keuffel & Esser N9081-3 Slide Rule With Case (A6)
Vintage K & E Keuffel & Esser N9081-3 Slide Rule With Case (A6)

$15.95

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KEUFFEL & ESSER LOGO ENAMEL LAPEL PIN & DECAL SET K+E SLIDE RULE
KEUFFEL & ESSER LOGO ENAMEL LAPEL PIN & DECAL SET K+E SLIDE RULE

$8.50

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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

$52.99

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Vintage K&E Keuffel & Esser Pocket Slide Rule 4161-1 Made In USA w/Leather Case
Vintage K&E Keuffel & Esser Pocket Slide Rule 4161-1 Made In USA w/Leather Case

$9.00

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Vintage K & E Keuffel and Esser 4181-3 Slide Rule With Original Leather Case
Vintage K & E Keuffel and Esser 4181-3 Slide Rule With Original Leather Case

$23.99

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Keuffel & Esser K+E Cooke Radio Slide Rule 4139 DAMAGED
Keuffel & Esser K+E Cooke Radio Slide Rule 4139 DAMAGED

$14.24

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VINTAGE K&E SLIDE RULE #4056 KEUFFEL & ESSER CO NY Leather Case
VINTAGE K&E SLIDE RULE #4056 KEUFFEL & ESSER CO NY Leather Case

$35.00

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Keuffel & Esser K&E Log Log Duplex Decitrig Slide Rule Manual No. 4081 cr 1955
Keuffel & Esser K&E Log Log Duplex Decitrig Slide Rule Manual No. 4081 cr 1955

$11.99

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Vintage Keuffel & Esser Slide Rule model 4090-3 & original case engineering Calc
Vintage Keuffel & Esser Slide Rule model 4090-3 & original case engineering Calc

$19.99

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Vintage Keuffel & Esser K+E Beginners Slide Rule, 4058W With Cover, 10 3/4”
Vintage Keuffel & Esser K+E Beginners Slide Rule, 4058W With Cover, 10 3/4”

$21.50

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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

$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

$75.00

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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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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 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

$63.99

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1947 Keuffel and Esser K&E 4081-3 Log Log Duplex Decitrig Slide Rule REAd
1947 Keuffel and Esser K&E 4081-3 Log Log Duplex Decitrig Slide Rule REAd

$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

$30.80

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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

$40.49

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

$40.00

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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

$125.00

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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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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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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+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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Slide Rule VTG K&E Keuffel & Esser Co. 1947 Log Log Duplex Vector 4083-3 READ
Slide Rule VTG K&E Keuffel & Esser Co. 1947 Log Log Duplex Vector 4083-3 READ

$19.99

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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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Keuffel Esser Slide Rule Manual 1955 No 4081 LOG LOG DUPLEX DECITRIG K&E
Keuffel Esser Slide Rule Manual 1955 No 4081 LOG LOG DUPLEX DECITRIG K&E

$9.99

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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

$119.99

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

$22.00

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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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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

$39.99

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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

$39.99

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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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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

$10.52

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Antique Thatcher's Calculating Instrument, Keuffel & Esser, Cylindrical Slide Ru
Antique Thatcher's Calculating Instrument, Keuffel & Esser, Cylindrical Slide Ru

$650.00

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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

$19.50

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Vintage K&E Keuffel & Esser Log Duplex Decitrig Slide Rule w/ Case!
Vintage K&E Keuffel & Esser Log Duplex Decitrig Slide Rule w/ Case!

$34.99

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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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Keuffel Esser Slide Rule Manual # 68 2047 [old #41875 ] LOG LOG DUPLEX DECITRIG
Keuffel Esser Slide Rule Manual # 68 2047 [old #41875 ] LOG LOG DUPLEX DECITRIG

$4.95

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

$12.50

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Vintage "Keuffel & Esser Co" Slide Rule with Leather Case (1924 Pat. Date)
Vintage "Keuffel & Esser Co" Slide Rule with Leather Case (1924 Pat. Date)

$20.00

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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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1947 Keuffel & Esser Log Duplex Decitrig 4081-3S Slide Ruler with Case
1947 Keuffel & Esser Log Duplex Decitrig 4081-3S Slide Ruler with Case

$34.95

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

$42.95

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Keuffel & Esser 4012 Thacher Cylindrical Slide Rule Calculating Instrument
Keuffel & Esser 4012 Thacher Cylindrical Slide Rule Calculating Instrument

$575.00

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K+E Slide Rules 1962 Deci-Lon Instruction Manual Keuffel & Esser HC Free Ship
K+E Slide Rules 1962 Deci-Lon Instruction Manual Keuffel & Esser HC Free Ship

$22.95

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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

$16.95

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K&E No. 4081 Slide Rule Manual Log Log Duplex Decitrig Keuffel & Esser 1955
K&E No. 4081 Slide Rule Manual Log Log Duplex Decitrig Keuffel & Esser 1955

$11.98

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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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Vintage K&E Keuffel Esser Model 4054 Slide Rule With Leather Case Nice Logo USA
Vintage K&E Keuffel Esser Model 4054 Slide Rule With Leather Case Nice Logo USA

$18.67

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K+E 4181-1 AUTH LOG LOG DUPLEX Slide Rule Box & Leather Sheath Keuffel & Esser
K+E 4181-1 AUTH LOG LOG DUPLEX Slide Rule Box & Leather Sheath Keuffel & Esser

$34.99

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KEUFFEL + ESSER - vintage wooden SLIDE RULE LOT - (2) N4081-3, N4080-3, N-4053-3
KEUFFEL + ESSER - vintage wooden SLIDE RULE LOT - (2) N4081-3, N4080-3, N-4053-3

$38.85

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Keuffel & Esser KE Slide Rules Hardcover 1955 Jetlog and Decitrig Manual
Keuffel & Esser KE Slide Rules Hardcover 1955 Jetlog and Decitrig Manual

$15.99

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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

$45.00

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K&E Keuffel & Esser Slide Rule Leather Sheath Case Model 4031 Vtg Engineering
K&E Keuffel & Esser Slide Rule Leather Sheath Case Model 4031 Vtg Engineering

$29.99

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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 K&E K+E GP12 GP 12 Slide Rule Ruler + Slide & Case 1964
Vintage Keuffel & Esser K&E K+E GP12 GP 12 Slide Rule Ruler + Slide & Case 1964

$15.35

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

$7.99

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K&E KEUFFEL & ESSER N-4053-3 SLIDE RULE 10" w/ UGLY Case
K&E KEUFFEL & ESSER N-4053-3 SLIDE RULE 10" w/ UGLY Case

$12.95

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Keuffel & Esser 4080-3 Log Log Duplex Trig Slide Rule W/ Case
Keuffel & Esser 4080-3 Log Log Duplex Trig Slide Rule W/ Case

$59.00

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Vtg Keuffel & Esser Slide Rule W/ Leather Case Model 4088-2 Plastic & Wood 10"
Vtg Keuffel & Esser Slide Rule W/ Leather Case Model 4088-2 Plastic & Wood 10"

$21.00

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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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K&E Log Log Duplex Decitrig Slide Rule with Leather Case Keuffel & Esser USA
K&E Log Log Duplex Decitrig Slide Rule with Leather Case Keuffel & Esser USA

$28.99

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*Needs repair Vintage Keuffel & Esser K&E 4081-3 Log Slide Ruler and Case
*Needs repair Vintage Keuffel & Esser K&E 4081-3 Log Slide Ruler and Case

$13.98

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The Polyphase Slide Rule, A Self Training Manual, 1925 Keuffel & Esser Co.
The Polyphase Slide Rule, A Self Training Manual, 1925 Keuffel & Esser Co.

$8.00

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K&E Keuffel & Esser Model N4083-3 Log Log Duplex 1947 Slide Rule CRACKED CURSOR
K&E Keuffel & Esser Model N4083-3 Log Log Duplex 1947 Slide Rule CRACKED CURSOR

$24.99

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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 N4092-3 SLIDE RULE 12.5” Antique W/monogrammed Leather Case
KEUFFEL & ESSER N4092-3 SLIDE RULE 12.5” Antique W/monogrammed Leather Case

$19.69

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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 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

$33.00

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Vintage Keuffel and Esser Slide Rule No. 4081 Includes Original Box and Manual
Vintage Keuffel and Esser Slide Rule No. 4081 Includes Original Box and Manual

$34.95

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Keuffel & Esser Vintage 1967 Slide Ruler K&E Slide Rule Leather Case 68 1648
Keuffel & Esser Vintage 1967 Slide Ruler K&E Slide Rule Leather Case 68 1648

$15.00

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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

$24.00

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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

$24.95

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2 Vintage Keuffel & Esser Slide Rules incomplete
2 Vintage Keuffel & Esser Slide Rules incomplete

$5.99

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Vintage Keuffel & Esser N4080-3S Slide Rule Original Leather Case with Manual
Vintage Keuffel & Esser N4080-3S Slide Rule Original Leather Case with Manual

$63.99

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Vintage Keuffel & Esser Co. N.Y. Slide Ruler N4053-3 Made in USA
Vintage Keuffel & Esser Co. N.Y. Slide Ruler N4053-3 Made in USA

$22.99

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