$75

1968 BECHTEL Logo Pin Applique STEEL STAMPING DIE Robbins RH508 Engineering

$38.96

1982 Inotec Engineering Literature Signed Letter Pres William Lippman Oakmont PA

$5.79

1945 Illustration ~THORNTON OAKLEY ~ Vitamin A Is Separated From Shark Liver Oil

$14.88

UNIQUE UNIVERSAL SLIDE RULE in ORIGINAL CASE DRAWING INSTRUMENT

$8.77

Vintage Adjustable Set Square Trident Facila 12” Architect Draughtman's Drawing

$21.99

Vintage Side Converter Whatman Inc Metric Measurement and Filter Paper Selector

$14

Vintage Door-Oliver Conversion Factors for the Engineer Booklet 1972

$13.95

Vintage Taylor Lensatic Engineer's Compass From Japan - PARTS ONLY not working

$22

VTG Curvimeter Topographical Map Measure Instrument Curved Crooked Lines Russia

$5.59

National Technical Schools Color Television Lessons CT-8 thru CT-12 + 3 Inserts

$23.36

1975 Worthington Inc Trench-All Trencher Chain Engineering Literature Batavia IL

$9

Vtg 16" x 20" Industrial Machine B&W Professional Photograph #2