April 24, 2024
3 antique sliderule slide rules slide rule
Pricing & History
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You are bidding on three sliderules1.) no maker name wood, no cursor, reversible slide, 10-1/4" long, top edge beveled, thumb knob at right end of slide. Well used, a little stained, 3" of the top edge near the right center are worn2.) 367 A.W. FABER D.R. PATENT No. 206428 D.R.G.M. 371190 MADE IN GERMANY 11" long, top edge beveled, with decimal keeper cursor, reversible slide, with case. Well used, soiled, body cracked horizontally on back side3.) Marked on the slide: KEUFFEL & ESSER CO., N.Y. marked on the top of the cursor: K&E CO. N.Y. PAT.8.17.15. marked on the lower front: PAT. JUNE 5, 1900 with reversible slide, with case. Well used, soiled, fingerstained
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