$62.36

(8) 1981 Cole-Parmer Instrument Company Industry Engineering Catalogs Chicago IL

$24.3

Vintage Unique Log Slide Rule Ruler 12”

$19.99

1950s GE Air-Circuit Breaker XRP12A Install & Service Manual (Aircraft Antenna)

$9.99

1950s ~ ELDEC ~ Slip Rings + Brush Holder ~ Booklet Brochure Sub-miniature

$109.45

Surveyors Wooden Telescopic Measure Stick/ Rule / Staff 4.2 meters or 3 sections

$17.54

VINTAGE UNIQUE LOG LOG SLIDE RULE IN case made in England

$93.16

Four Vintage Handheld Engineers Calculators / Gauges plus Related Paraphernalia

$15.01

Vintage ALBERT NESTLER Darmstadt Germany SLIDE RULE No. 21 with instructions

$17.54

VINTAGE UNIQUE UNIVERSAL SLIDE RULE ORIGINAL BOX Antique Made In England Ruler

$38.96

c1960 The Artus Corp Engineering Literature + Sample Signed Letter Englewood NJ

$10

RapiDesign Vintage Pocket Pal No.50 Time Saver Template!

$60.76

Keuffel Esser 4053-3 Slide Rule Leather Case Vintage Engineering Tool New York