Photographer Unknown, International Business Machines Corporation: Selective Sequence Electronic Calculator, 1951
Gelatin silver print; printed 1951
9 3/8 x 7 3/8 inches
Notations in pencil and ink and stamps with title in ink and typed captions on labels affixed to print verso.
Gelatin silver print; printed 1951
9 3/8 x 7 3/8 inches
Notations in pencil and ink and stamps with title in ink and typed captions on labels affixed to print verso.