$15

Vintage KEUFFEL & ESSER N4053-3 SLIDE RULE Antique Wood with case

$8.57

VTG 1979 Varco-Pruden Metal Bldg Systems SLIDE RULE Energy Savings Calculator

$12.99

Vintage LAWRENCE ENGINEERING Wooden SLIDE RULE in Original Box model

$8.5

Vintage Precision Sterling Slide Rule Drafting Engineering Tool Made in USA

$130

Antique Keuffel & Esser Co. Slide Ruler (o6)

$5.82

Vintage 1974 Accessory Automobile Texaco Gasoline Economy Calculator

$10

Pickett Slide Rule Booklet 1960 "How To Use TRIG Slide Rules" Maurice Hartung +

$50

Soviet ruler made in USSR

$39.95

Vtg K&E Keuffel Esser Co Log Log Duplex Decitrig Slide Rule 4081-3S Leather Case

$10.6

Vintage PICKETT TRAINER Model 120 Slide Rule w/ Case And Box

$12.95

VTG Mannheim Acu Math Slide Rule No 4008 W/ Case Made In USA

$17.98

Metric Converter Lot of 3 Slide Chart Concrete Estimator Lumber Calculator 1970s