$122.5

VTG K&E Pocket Slide Rule 4098A Instructions 1936 The Slide Rule 1923 Book Lot

$9.99

Air Valve Calculator Slide Chart Val-Matic Air Valve & MFG. Corp. Illinois

$15.3

GP Series Black Fountain Pen Matte Black Metal Body Fine Nib

$10

Carboloy Productivity Calculator (1992)

$60

Vintage 60's K&E Log Log Decitrig Slide Rule

$15.95

Dow Corning Silicon Slide Rule /Dopant Concentration/Properties of Elements 1973

$9.99

Graphic Indicator Company Stencil No 101 Cassel Fixture Indicator & Slip cover

$24.95

Lot of Two Pickett & Eckel Log Log Slide Rules ~ Model 2 & 800-T w/ Cases 1940s

$19.5

VTG EMBOSSED Hard Leather Case SLIDE RULER Holder Knife Glasses Sheath -hh

$27.99

Foxboro Slide Rule Calculator 1962 & 1971 Valve And Meter PUB-19 w Case & Manual

$17

Vintage Lawrence Engineering Slide Rule No. 1 Thru 60 Peru Indiana USA

$49.64

Post 1460 Versalog Slide Rule Hemmi Bamboo Japan w/ Leather Case Vintage EUC