Samuel H. Caldwell (standing) with Vannevar Bush sitting in 1949 while Caldwell was developing what became the Sinotype system in 1959.
Samuel H. Caldwell (standing) with Vannevar Bush sitting in 1949 while Caldwell was developing what became the Sinotype system in 1959. This photograph, with the image of Caldwell removed, was clearly the source or inspiration of the cover of Popular Mechanics.
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