Engineering

Teledyne Post Slide Rule 44BA-470 Hemmi Japan Engineering Ruler Math Science

$10.0

Antique 50' foot Surveyor's chain Surveying tool W.D. War Department

$475.0

Vintage KEUFFEL & ESSER 1143 Pantograph Rule Ruler

$55.0

Rare Charvoz Japan Cat. # 11-1188 Equal Space Divider

$79.99

Old Hand Level Survey Tool K&E?

$10.0

LEROY Lettering Set K&E Keuffel & Esser Technical Drafting Mostly Complete

$95.0

Authentic German WWII Dietzen 1741 Slide Rule W/ Orig. Leather Case

$300.0

BRUNING 64-581 PROPORTIONAL DIVIDER WITH DECIMAL SCALING

$85.0