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Scientific Apparatus
VE-PO-AD (Vest Pocket Adder)

The VE-PO-AD (Vest Pocket Adder) was manufactured by Reliable Typewriter and Adding Machine Corporation, circa 1930. It is a mechanical calculator. In leather-look case with metal stylus. No instructions included. Belonged to W. C. "Rocky" Rockefeller, Caltech alumnus ( BS engineering 1932; MS aeronautical engineering, 1934); Instructor 1934-1938.

ID: 2012-00034

Creation Jan. 1, 1930

MEDIUM: Metal, mixed; FORMAT: In case (glued in?); LENGTH: 3 3/8 x 5 in. (closed); 10 in. if open; QUANTITY: 1 instrument

Topics: Mathematics Calculators

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