K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule with Leather Case
Price: USD 35.99
Condition: Used
Location: 953**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Vintage K&E Slide Rule W/ Leather Orange Case Keuffel & Esser Ruler
Price: USD 49.99
Condition: Used
Location: 722**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
K & E/Keuffel & Esser 10" #4161-3 Plastic Slide rule 018532 Black Leather
Price: USD 29.99
Condition: Used
Location: 982**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Keuffel & Esser K&E Log Log Duplex 68 1215 Slide Rule W/Leather Case Old 4081-3S
Price: USD 149.99
Condition: Used
Location: 982**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
VTG K&E N4058W Beginners Slide Rule Keuffel & Essex Co Black Case USA
Price: USD 15.70
Condition: Used
Location: 913**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
K & E Keuffel & Esser Co. 4181-3 Slide Rule with Orange Leather Case
Price: USD 30.00
Condition: Used
Location: 402**
Shipping Type:
Shipping Cost: USD
Read More
Vintage Keuffel & Esser Co. K&E Slide Rule 4081-3 With Leather Case Made in USA
Price: USD 24.99
Condition: Used
Location: 802**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
VINTAGE WOOD K&E KEUFFEL & ESSER 20" N-4053-5 SLIDE RULE - Missing Curser
Price: USD 42.99
Condition: Used
Location: 786**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Keuffel & Esser K+E Cooke Radio Slide Rule 4139 DAMAGED
Price: USD 14.99
Condition: Used
Location: 321**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
K&E 68 1100 Slide Rule w/Leather Case Keuffel & Esser Deci Lon 10
Price: USD 50.00
Condition: Used
Location: 974**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
B15 K&E Keuffel & Esser 4181 6" Pocket Slide Rule with Slip case
Price: USD 40.00
Condition: Used
Location: 983**
Shipping Type: FIXED
Shipping Cost: USD 6.00
Read More
K&E No. 4081 Slide Rule Manual Log Log Duplex Decitrig Keuffel & Esser 1955
Price: USD 11.98
Condition: Like New
Location: 189**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
K&E Slide Rule US PATENT Art Print READY TO FRAME!!!! 1915 Keuffel & Esser K E
Price: USD 9.95
Condition: New
Location: 532**
Shipping Type: FIXED
Shipping Cost: USD 3.95
Read More
1943 The Log Log Duplex Trig Slide Rule No. 4080 A Manual Keuffel & Esser Co
Price: USD 10.00
Condition: Used
Location: 640**
Shipping Type: FIXED
Shipping Cost: USD 4.50
Read More
KEUFFEL & ESSER N4081-3 SLIDE RULE Log Duplex Decitrig w/ Leather Case
Price: USD 44.92
Condition: Unspecified
Location: 145**
Shipping Type:
Shipping Cost: USD
Read More
Keuffel & Esser Vintage Slide Ruler K&E Slide Rule Black Leather Case 4097D USA
Price: USD 17.95
Condition: Used
Location: 335**
Shipping Type: FIXED
Shipping Cost: USD 4.25
Read More
Vintage K&E Keuffel & Esser 4080-3 Slide Rule with Leather Case
Price: USD 24.99
Condition: Used
Location: 294**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule with Leather Case
Price: USD 34.95
Condition: Used
Location: 481**
Shipping Type: FIXED
Shipping Cost: USD 5.50
Read More
Vintage 1950s K&E Keuffel & Esser Co. Log Log Duplex Vector Slide Rule 4083-3
Price: USD 29.95
Condition: Used
Location: 600**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
K&E Slide Rule Manual No. 4081 Log Log Duplex Decitrig Keuffel & Esser
Price: USD 8.99
Condition: Used
Location: 300**
Shipping Type: FIXED
Shipping Cost: USD 5.99
Read More
Vintage K&E Deci-Lon 10 Slide Rule 68-1100 with Case Keuffel & Esser Co
Price: USD 50.00
Condition: Used
Location: 189**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
VTG Keuffel & Esser K&E 4133 Slide Rule w/ Beat-Up Case - Missing Glass
Price: USD 48.99
Condition: Used
Location: 257**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
Vintage Keuffel & Esser K+E Slide Rule 4053-3 Polyphase Leather Case 8891 Rule
Price: USD 19.99
Condition: Used
Location: 064**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
B15 K&E Keuffel & Esser 4181 6" Pocket Slide Rule with Slip case
Price: USD 35.00
Condition: Used
Location: 943**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
Vintage Keuffel & Esser Co. K&E Slide Rule 4088-3 With Leather Case Made in USA
Price: USD 27.95
Condition: Used
Location: 600**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
KEUFFEL & ESSER K&E 4053-3 SLIDE RULE with Green Leather Case With Booklet
Price: USD 24.99
Condition: Used
Location: 030**
Shipping Type: FIXED
Shipping Cost: USD 7.49
Read More
K&E KEUFFEL & ESSER N-4053-3 SLIDE RULE w/Case & Box, Polyphase. USA.
Price: USD 19.49
Condition: Used
Location: 030**
Shipping Type: FIXED
Shipping Cost: USD 6.49
Read More
Keuffel & Esser 10 Deci Lon 68 1100 Slide Rule With Leather Case, K&E Made USA
Price: USD 52.00
Condition: Used
Location: 280**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
Vintage 1961 K&E 68 1100 Slide Rule + Leather Case Keuffel & Esser Deci Lon 10
Price: USD 60.00
Condition: Used
Location: 712**
Shipping Type: FIXED
Shipping Cost: USD 6.95
Read More
Keuffel Esser K&E Co Slide Rule Magnifier 4185C Vintage with box Made in NY
Price: USD 49.99
Condition: Used
Location: 786**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
Keuffel & Esser K&E N4080-3 Log Log Duplex Trig Slide Rule W/ Brown Leather Case
Price: USD 44.99
Condition: Used
Location: 982**
Shipping Type: FIXED
Shipping Cost: USD 7.99
Read More
Keuffel & Esser Vintage Slide Ruler K&E Slide Rule Leather Case 4153-1
Price: USD 28.49
Condition: Unspecified
Location: 852**
Shipping Type: FIXED
Shipping Cost: USD 5.89
Read More
Vintage Doric K & E Co. 9068 Western Slide Rule
Price: USD 15.00
Condition: Used
Location: 145**
Shipping Type: FIXED
Shipping Cost: USD 6.75
Read More
~1960s K&E Slide Rule 68 1210 w Orig case Copyright 1947 Log Log Duplex Decitrig
Price: USD 28.50
Condition: Used
Location: 977**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
B15 K&E Keuffel & Esser 4098 6" Pocket Slide Rule with Slip case
Price: USD 15.00
Condition: Used
Location: 983**
Shipping Type: FIXED
Shipping Cost: USD 6.00
Read More
Vintage K&E Keuffel & Esser Co Slide Rule . 4056 ; 1930's (RED WOOD) in case
Price: USD 29.00
Condition: Used
Location: 018**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Keuffel & Esser K+E 4053-3 Slide Rule in Leather Case, N4053-3
Price: USD 17.95
Condition: Used
Location: 051**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
1947 K&E Keuffel & Esser Slide Rule N4081-3 Log Duplex Decitrig USA
Price: USD 25.00
Condition: Used
Location: 083**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Vintage Keuffel & Esser Co. K-12 Prep K + E Slide Rule #681892 W/ Case
Price: USD 23.99
Condition: Used
Location: 330**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
K&E Log Log Duplex Decitrig Slide Rule with Leather Case K&E #4081-3
Price: USD 65.00
Condition: Used
Location: 112**
Shipping Type: FIXED
Shipping Cost: USD 5.70
Read More
Keuffel & Esser K & E 4080-3 Log Log Duplex Trig Slide Rule W/ Case USA Vintage
Price: USD 25.00
Condition: Used
Location: 945**
Shipping Type: FIXED
Shipping Cost: USD 7.50
Read More
Vintage K & E Keuffel and Esser 4181-3 Slide Rule w/ Leather Case
Price: USD 29.99
Condition: Used
Location: 145**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
K&E Polyphase Duplex Slide Rule No 4071 - Copyright 1939
Price: USD 10.00
Condition: Used
Location: 820**
Shipping Type: FIXED
Shipping Cost: USD 5.50
Read More
Keuffel & Esser Vintage 1967 Slide Ruler K&E Slide Rule Leather Case 68 1648
Price: USD 15.00
Condition: Used
Location: 160**
Shipping Type: FIXED
Shipping Cost: USD 12.00
Read More
KEUFFEL & ESSER LOGO ENAMEL LAPEL PIN & DECAL SET K+E SLIDE RULE
Price: USD 8.50
Condition: New
Location: 554**
Shipping Type: FIXED
Shipping Cost: USD 5.50
Read More
1947 K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule w/ Case USA
Price: USD 52.99
Condition: Used
Location: 871**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Vtg Keuffel & Esser K&E Polyphase Slide Rule N 4053-3 A Self Teaching Manual
Price: USD 8.99
Condition: Unspecified
Location: 080**
Shipping Type: FIXED
Shipping Cost: USD 6.00
Read More
early 1930's K+E Slide Rule N4053-3 Brown Leather Case Keuffel Esser Engineering
Price: USD 19.50
Condition: Used
Location: 063**
Shipping Type:
Shipping Cost: USD
Read More
Vintage Slide Rule K&E 4053 35 Keuffel Esser
Price: USD 11.99
Condition: Used
Location: 446**
Shipping Type: FIXED
Shipping Cost: USD 8.50
Read More
1947 K&E Keuffel & Esser Slide Rule N4081-3 Log Duplex Decitrig USA No Case
Price: USD 19.00
Condition: Used
Location: 041**
Shipping Type: FIXED
Shipping Cost: USD 5.00
Read More
Keuffel & Esser K+E Vintage Slide Rule N-4053-3 w/ Leather Case
Price: USD 14.95
Condition: Used
Location: 949**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
VTG 1952 K+E Keuffel & Esser 4161-1 Slide Rule With Original Case Instructions
Price: USD 49.95
Condition: Used
Location: 601**
Shipping Type: FIXED
Shipping Cost: USD 7.95
Read More
1943 K&E Slide Rule Manual No. N4081 Log Log Duplex Decitrig Keuffel & Esser
Price: USD 11.50
Condition: Used
Location: 149**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
K&E N4058W Beginners Slide Rule Vintage Keuffel & Essex Co. with Case U.S.A.
Price: USD 9.99
Condition: Used
Location: 920**
Shipping Type: FIXED
Shipping Cost: USD 4.99
Read More
K&E Log Log Duplex Trig Slide Rule- 1943, No 4080
Price: USD 12.00
Condition: Used
Location: 820**
Shipping Type: FIXED
Shipping Cost: USD 5.50
Read More
Keuffel & Esser K+E Vintage Slide Rule N-4053-3 with Leather Case - Vintage
Price: USD 22.95
Condition: Used
Location: 120**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
1947 K&E Keuffel & Esser Slide Rule N4081-3 Log Duplex Decitrig USA Leather Case
Price: USD 29.99
Condition: Used
Location: 891**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
K & E Keuffel & Esser Co. 4180-3 Slide Rule with 7 Page Manual & Leather Case
Price: USD 38.00
Condition: Used
Location: 067**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Vintage Keuffel Esser K&E Slide Rule 4083-3 Leather Case and Box
Price: USD 36.99
Condition: Used
Location: 201**
Shipping Type:
Shipping Cost: USD
Read More
KEUFFEL & ESSER SLIDE LOG LOG DUPLEX DECITRIG 68 1210 SLIDE RULE K&E K+E & Case
Price: USD 27.99
Condition: Used
Location: 077**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
Vintage Keuffel & Esser Co. K&E Slide Rule 4055 With Leather Case Made in USA
Price: USD 20.00
Condition: Used
Location: 599**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
VTG Keuffel & Esser K&E Favorite Slide Rule #4081 w/Hard Case - See Description
Price: USD 8.99
Condition: Used
Location: 151**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
Vintage 1961 K&E 68 1100 Slide Rule w/Leather Case Keuffel Esser Deci Lon
Price: USD 55.82
Condition: Used
Location: 335**
Shipping Type: FIXED
Shipping Cost: USD 9.63
Read More
Slide Rule VTG K&E Keuffel & Esser Co. 1947 Log Log Duplex Vector 4083-3 READ
Price: USD 19.99
Condition: Used
Location: 604**
Shipping Type: FIXED
Shipping Cost: USD 4.97
Read More
VTG 1947 Keuffel & Esser K&E N4081-3 Log Log Duplex Decitrig Slide Rule w/Case
Price: USD 19.99
Condition: Used
Location: 949**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Vintage Keuffel & Esser K&E 4053-3 Slide Rule w/ Brown Leather Case -super clean
Price: USD 24.95
Condition: Used
Location: 836**
Shipping Type: FIXED
Shipping Cost: USD 4.95
Read More
NICE ORIGINAL VINTAGE 1940’s K&E KEUFFEL & ESSER 4139 SLIDE RULE
Price: USD 24.12
Condition: Used
Location: 841**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule with Leather Case
Price: USD 35.00
Condition: Used
Location: 836**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
1947 Keuffel & Esser K&E N4080-3 Log Log Duplex Trig Slide Rule
Price: USD 14.99
Condition: Used
Location: 370**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Vintage K&E Keuffel Esser Model 4054 Slide Rule With Leather Case Nice Logo USA
Price: USD 18.67
Condition: Used
Location: 973**
Shipping Type: FIXED
Shipping Cost: USD 8.63
Read More
Antique Keuffel & Esser K&E Slide Rule wooden beginner slide rule 4058C 1910's
Price: USD 22.99
Condition: Used
Location: 871**
Shipping Type:
Shipping Cost: USD
Read More
Keuffel & Esser K+E Vintage Slide Rule N-4053-3 with Leather Case
Price: USD 19.95
Condition: Used
Location: 982**
Shipping Type: FIXED
Shipping Cost: USD 5.95
Read More
🌟 K+E KEUFFEL ESSER LOG LOG DUPLEX SLIDE RULE & LEATHER CASE
Price: USD 30.00
Condition: Used
Location: 926**
Shipping Type:
Shipping Cost: USD
Read More
K&E Keuffel & Esser Co NY Slide Rule in Leather Case 4088-3 Antique Vintage
Price: USD 15.00
Condition: Used
Location: 542**
Shipping Type:
Shipping Cost: USD
Read More
Genuine Deci Lon Deci-Lon 10 Vintage Slide Rule K&E Lesther Case
Price: USD 69.99
Condition: Used
Location: 064**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Keuffel & Esser 20 1/2" N-4053-3 Mahogany Wood Slide Rule in Case, Patent 1937
Price: USD 24.99
Condition: Used
Location: 974**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Vintage K&E Keuffel Esser Model 4081-3 Slide Rule W/case & Book
Price: USD 35.00
Condition: Used
Location: 293**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Antique K&E slide rule with original case And Instructions 4056
Price: USD 15.95
Condition: Used
Location: 462**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
1947 K&E Slide Rule Manual No. N4081 Log Log Duplex Decitrig Keuffel & Esser
Price: USD 20.00
Condition: Used
Location: 030**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
K&E Slide Rule Manual Set Keuffel & Esser Log Log Duplex No. 4081 & 4083
Price: USD 27.99
Condition:
Location: 853**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Vintage KEUFFEL & ESSER N4053-3 SLIDE RULE PATENT JUNE 5 1900 Antique SUPER NICE
Price: USD 14.75
Condition: Used
Location: 342**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
Vintage K&E Co. Magnifier for Slide Rule 4185B in Original Box
Price: USD 60.00
Condition: Used
Location: 152**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
K & E 1939 Manual #4070, POLYPHASE DUPLEX TRIG Slide rule, 87 pages
Price: USD 8.95
Condition: Used
Location: 706**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
Vintage Keuffel & Esser Vintage Slide Ruler K&E Slide Rule 046227 Rare 4081-3
Price: USD 35.00
Condition: Used
Location: 322**
Shipping Type: FIXED
Shipping Cost: USD 1.99
Read More
Vintage K&E slide rule New in Box (it was opened to show contents)
Price: USD 107.50
Condition: New
Location: 752**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
K&E Keuffel & Esser 4081-3 Log Log Duplex Decitrig Slide Rule
Price: USD 17.95
Condition: Used
Location: 960**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More
KEUFFEL & ESSER K&E CO NY Slide Rule with Black Paperboard Case Vintage
Price: USD 24.04
Condition: Used
Location: 301**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
Vintage Keuffel & Esser K+E Slide Rule 4088-3 with Leather Case -
Price: USD 14.39
Condition: Used
Location: 014**
Shipping Type: FIXED
Shipping Cost: USD 4.75
Read More
K&E 68 1100 Slide Rule Leather Case Keuffel & Esser Deci-Lon 10 1961
Price: USD 69.99
Condition: Used
Location: 210**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
K&E No 68 2047 Slide Rule Manual
Price: USD 8.00
Condition: Used
Location: 820**
Shipping Type: FIXED
Shipping Cost: USD 5.50
Read More
VINTAGE K&E Keuffel & Esser Slide Rule 4095-3, USA W Manual & Case
Price: USD 24.95
Condition: Unspecified
Location: 299**
Shipping Type: FIXED
Shipping Cost: USD 8.95
Read More
K&E Keuffel & Esser 4181-3 Slide Rule in Original K&E Orange Leather case
Price: USD 18.95
Condition: Used
Location: 065**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
K&E Deci-Lon Slide Rule 68-1100 w/Leather Case, Box & Manual ~ Keuffel & Esser
Price: USD 275.00
Condition: Unspecified
Location: 114**
Shipping Type: CALCULATED
Shipping Cost: USD
Read More
Vintage K&E 68-1100 Slide Rule With Leather Case Keuffel Esser Deci- Lon
Price: USD 79.99
Condition: Used
Location: 917**
Shipping Type: FIXED
Shipping Cost: USD 9.00
Read More
Keuffel & Esser K&E Polyphase Duplex Decitrig Slide Rule 4071-3
Price: USD 10.00
Condition: Used
Location: 064**
Shipping Type: FIXED
Shipping Cost: USD 13.00
Read More
A Slide Rule With Intellect And Horse Sense Don Herold 1956 K&E Slide Rule
Price: USD 29.99
Condition: Used
Location: 993**
Shipping Type: FIXED
Shipping Cost: USD 4.99
Read More
1948 4th Ed K+E 4080-3 Slide Rule Black Leather Case 10" Mahogany Duplex Vintage
Price: USD 15.99
Condition: Used
Location: 063**
Shipping Type:
Shipping Cost: USD
Read More
K & E Keuffel & Esser Co. 4053-3 Polyphase Slide Rule Leather Case New in Box
Price: USD 58.00
Condition: New
Location: 741**
Shipping Type: FIXED
Shipping Cost: USD 8.00
Read More
Keuffel & Esser K&E Indicator Log Duplex Vector Slide Rule Soroban Abacus Leads+
Price: USD 69.99
Condition: Used
Location: 543**
Shipping Type: FIXED
Shipping Cost: USD 10.99
Read More
Keuffel & Esser DECI-LON 68 1100 Slide Rule & Case c 1947, 1961 with Book
Price: USD 249.99
Condition: Used
Location: 982**
Shipping Type: FIXED
Shipping Cost: USD 0.00
Read More