$18.41

1955 ASTM Bulletin Technical Publication Magazine Science Engineering Materials

$38.11

Vintage Original 6" Rectangular Protractor Map Scale Measuring Ruler Old Tool

$41.94

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

$93.37

TRANSMITTER AND RECEIVER 458.600 MHZ USED WITH WILLMORE MARK 3A SEISMOMETER

$12.95

4 Various Science Olympiad Ribbons & Medallions

$2.99

Charles Bruning Co. Vintage # 2378 Precision Map Measuring Tool Swiss Made

$40.6

HAFF DIGIPLAN Digital Planimeter 300/301

$19.46

1967 Erie Malleable Iron Co "Wheels & Brake Drums" Engineering Brochure Erie PA

$129.19

Rare Antique 13.5" Boxwood FARMAR"S Royal Letters Patent PUBLICANS SLIDE RULE

$33.83

Vintage Industrial Steel Drafting Ruler (National Rule Co. Rochester N.Y. USA)

$77.16

Cooke Troughton & Simms 12" Level

$10

Ford Corporation Vehicle And Engine Controls Collectible. Office Display.