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[Patrick Tang using abacus while Lieutenant James E. Stewart operates automatic alphabetical tabulator]
Photograph of civilian employee Patrick Tang (seated at desk) using an abacus while Lieutenant James E. Stewart, U.S. Army Air Forces, operates an automatic alphabetical tabulator, Shanghai, China, circa 1940s.Inscription on verso: "Patrick Tang, civilian employee of AAF Statistical Unit, prefers the ancient abacus to modern adding machine. [Chinese characters]."Typed on verso of duplicate photo:…
[Servicemen of 24th Statistical Control Unit and representatives of IBM taking inventory]
Photograph of servicemen of the 24th Statistical Control Unit, U.S. Army Air Forces, and representatives of IBM (International Business Machines Corporation) taking inventory in an office in Shanghai, China, circa 1940s. Identified individuals are (from left to right) P. F. Pong, manager of the IBM Shanghai office; Major Graham T. Young, commanding officer of the 24th STU; Lieutenant James E.…