Collections Item Detail
Sperry Pocket Calculator S915. Keuffel & Esser Co.
Object/Artifact
E.A. Sperry's [Pocket] Calculator. Keuffel & Esser Co., New York (and Hoboken.)
S915; a circular dial calculator considered part of the genre of slide rules.
With leather case with snap cover (snap: United-Carr; founded 1929)
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PDFs on file of: 1911 patent; Oughtred Society article.
2013.005.0085
2013.005
Lukacs, Claire
Gift
Museum Collections. Gift of a Friend of the Museum.
1920 - 1935
Date: 1920-1935
Fair
Status: OK Status By: dw Status Date: 2015-06-11