$99.99

Antique 1933 Keuffel & Esser N4053-3 Polyphase Mannheim Simplex Slide Rule

$28.46

Slide Rule 1460 Frederick Post Versalog Hemmi Japan w/ Brown Leather Case VTG

$19.95

***VTG Sterling 1965 Slide Rule Decimal Trig Log-Log Measuring Tool 12 x 1 3/4"

$5

C-THRU W-41 Protractor Ruler Architects Scale Made in USA

$13.49

Vintage 5” Globemaster No. 62200 Slide Rule w Instructions & Case Japan Rare!

$13.99

Vintage RB&W Structural Bolt Strength Properties Slide Chart Cardboard USA

$15

SHURE REACTANCE SLIDE RULE Calculator Paper Slide Rule w INSTRUCTIONS & ENVELOPE

$100

Vintage Frederick Post Versalog Slide Rule 1460 with 2 Leather Cases Hemmi Japan

$25.5

Ricoh Slide Rule 151 - in Original Leather case - Made in Japan

$40

Slide rule KL-1 made in USSR

$23.99

N-515-T Pickett Slide Rule Cleveland Institute of Electronics w/ Case

$10.99

Vintage Calculator Slide Rule ~ UNBRAKO ~ socket screw calculator