$9

1974 Elco Industries Metal Working Conversion Slide Guide Tool Rockford IL

$40

Soviet logarithmic multi ruler, slide Ruler smal made in USSR

$16.99

Corning Pyrex Automatic Bid Calculator Slide Rule Vintage

$68.95

Keuffel & Esser K&E 4070-3 Polyphase Duplex Trig Slide Rule — Perfect: FREE Ship

$132

PICKETT Electronic Model N-515-T Slide Rule Sealed Orig Plastic w/Case (RF1058)

$12

Vintage ACU-MATH No. 400 Slide Rule Made In USA VGC

$29.55

Keuffel & Esser Slide Ruler 4081-3 With Leather Case

$30

Keuffel & Esser 4092-3 Slide Rule With Original Leather Case Vintage

$43.5

Vintage Frederick Post Versalog Engineer Hemmi Bamboo Slide Rule #1460 stunning

$40

EUC Vintage SUN HEMMI JAPAN No 34RK Bamboo Slide Rule Brown Leather Case

$36

VTG Lot Of 4 Slide Rules Inc. Pickett Microline 120 & Precision Sterling No.589

$28

KEUFFEL & ESSER Vintage SLIDE RULE Polyphase Duplex 4098A w/OG Leather Case USA