$13.52

Vintage Unique Universal I Model U.I. Slide Rule w/ Box - Made in England

$27.17

Planimeter Hope Graph Co Japan vintage in box

$9.99

Engineer Lensatic Compass Academy Japan W/ Glow in The Dark hands Used

$18.85

Kum Burmester Set 125Bt Vintage Onit Germany 120 BT, 121 BT, 122 BT

$124.45

ZL180 Handheld GPS for Surveying, High Precision Rugged Land Surveying Equipm...

$19.46

1959 The Deublin Company "Rotating Unions" Engineering Brochure Northbrook IL

$30.38

1972 CEM Company Inc Roll Pin Connectors Engineering Brochures Danielson CT

$22.45

Flexible Curve Rule 12 Inch Transparent Edge (S419)

$7.49

Vintage National Technical Schools Lesson No BL The Business Lessons

$8.17

Vintage Forney Testing Machines Conversion Factors Pocket Guide Booklet Pamphlet

$58

Vintage Leeds & Northrup Reflecting Galvanometer VERY CLEAN! STEAMPUNK FUNK

$18.92

Vintage Nestler Pocket Slide Rule Nr 11k In Original Case Made In Germany Mini