May 13th, 2008
The Best of Antiques
and Collecting
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The slide rule, invented by William Oughtred in 1622, consists of two divided scales, one fixed and one movable, and a sliding window called a cursor. Slide rules were the primary tool for performing multiplication, division and other scientific functions up through the 1960s and the development of the electronic calculator. There are straight, circular and cylindrical slide rules, all collectible.
Mike Konshak's amazing antique slide rule reference site 'dedicated to students and engineers of the past and prese… [more]
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Current auctions | Completed auctions
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