$6.15

Slide Rule FABER CASTELL 1/87 Rietz with Sliding Scale

$12.46

Simplon Vintage Set Square 10” Dargue Brothers

$19.98

Vintage Staedtler Mars Masterbow Drawing Instrument Set Extra Lead Part Missing

$33.67

Large Helix Wooden Compass, Dividers, Drafting, Carpentry, Art, Teachers, BX32

$19.95

Vtg K&E ~ Keuffel & Esser Co. 4153-1 ~ 6" Slide Rule with black case ~ USA made

$39

Rare Gurley 7058 Rapid Comparator Standard Version model with Case

$336.61

Carl Zeiss Th42 Theodolite Surveying Instrument West Germany In Case + Manual

$32.9

Engineers Compass and Ruler tie tack pin badge

$9.95

ASM International hat pin lapel pin badge American Society of Metals gold filled

$39.12

vintage K+ E 1954 solar ephemeris & surveying inst manual

$19.74

Antique Old Brass Drawing Compass

$27.26

1973 Lear Siegler Inc "Fiberglide Bearings " Engineering Catalog Santa Ana CA