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Summit International Corporation

Summit International Corp., Salt Lake City, Utah.Manufactured by NCE Nuclear, made in U.S.A. 

In 1971 Ed Price made a prototype hand-held electronic calculator using a carved wooden case and breadboarded electronics.
Nuclear Controls and Electronics (NCE) of Salt Lake City were interested in diversifying and contracted Ed and his calculator. They were marketed by the affiliated Summit International Corporation and a series of generally very small calculators was developed and sold from 1972.
Trans Atlas took over NCE and Summit in 1974, by which time there was a glut of manufacturers in a maturing, low profit market and manufacture of Summit calculators ceased.
Ed Price went on to form a new company, Price Research Associates, which made one characteristically tiny hand-held model.