$29.99

RARE 3" SOLA BASICS, Hevi-Duty Elec., Imprint Circular Slide Rule, by Concise

$20

Soviet Logarithmic Ruler Vintage Rare Collectible USSR rule with Case 1973

$20

Weems & Plath Nautical Slide Rule 105 Marine Maritime Navigation Speed Time

$9.49

Keuffel & Esser Co NY #4054 SPEED SLIDE RULE with LEATHER HOLSTER Vintage

$14

1945 Allied's Parallel Resistance & Series Capacitance Calculator Slide Rule

$30.25

Vintage Aluminum Pickett Slide Ruler Model N-1010-ES Trig With Case

$64.95

Motor Data calculator slide rule / AC winding postionvint lot 5 electric Chicago

$79.99

SUN HEMMI Japan Bamboo Slide Rule No. 30 Brand NEW Sealed Vintage Hitachi, Ltd.

$8.95

Vintage 1960s DVC CFM and Fire & Smoke Ventalog Sliding Calculators - RARE!

$30

Lot Of 3 Vintage Slide Rulers Dietzgen, Keuffel & Esser, Pickett Made in U.S.A.

$166.11

Hemmi POST No. 1460 Versalog Slide Rule Bamboo. Fine. Very Scarce.

$45.6

Vintage Pickett Model 500-ES Trig Slide Rule