History of Science and Technology, Including Fossils, Minerals and Meteorites
History of Science and Technology, Including Fossils, Minerals and Meteorites
From the Computing History Collection of Serge Roube, via his Estate
A LARGE THACHER'S CALCULATING INSTRUMENT, BY KUEFFER & ESSER CO., NO. 4013
Auction Closed
December 17, 08:56 PM GMT
Estimate
3,000 - 5,000 USD
Lot Details
Description
From the Computing History Collection of Serge Roube, via his Estate
LARGE THACHER’S CALCULATING INSTRUMENT
Keuffel & Esser Co., New York, circa 1917
Large complex cylindrical slide-rule, no 4013, being a 19 ½ inch long central cylinder rotating beneath 20 triangular rules, ends fitted with wooden knobs, attached to brass fittings, and mounted onto wooden base. Complete with original magnifying glass mounted onto brass bar, housed in the original 24 inch long mahogany box with manufacturer's label. WITH: THACHER, EDWIN. Directions for Using Thacher's Instrument. New York: Keuffel & Esser Co. 1917.
Patented by Edwin Thacher in 1881, this complex slide rule could perform various calculations involving multiplication and division, and proportion up to five figures.