$19.46

1966 Fluid Controls Inc Hydraulic Loads Engineering Literature Mentor OH

$950

liquid fueled rocket engine

$16.53

rOtring Isograph Technical Drawing Pen, Liquid Ink, 23 ml, Black 0.8 fl oz

$249.95

Vintage German 1960s ARISTO 0971 Hyperbolog Engineers Slide Rule Case Manual Box

$284.17

EARLY  RARE ARCHBUTT OF LONDON BRASS PROTRACTOR 8 INCH DIAMETER IN BOX

$18.71

VTG A W Faber Castell 883-Z2 Triangle Ruler Engineering w/ Clear Case Germany

$60.89

Abney Level Reflecting Clinometer Original Early Round Brass Body

$9

Noodle Your IQ Metal Puzzle Easy Level Keyed Challenge your skills 8 And Up

$41.94

Faber-Castell Duplex 2/82 - Slide Rule with original case – made in Germany

$405.95

Vintage Theodolite and Surveying Equipment with Tripod Parts from 1920

$14.44

Vintage NEPSS WASTED FUEL CALCULATOR NAVY ENVIRONMENTAL SUPPORT OFFICE

$16.24

M H Mear & Co Comprehensive Metric Conversion Calculator Made England