Robby poses with three of the men who built him and kept him running smoothly during filming, prop shop technicians Cliff Grant (left) Andy Thatcher (kneeling) and electrician Jack McMasters. Jack Gaylord was in charge of the construction of Robby, and worked out final mechanical problems with his own group of draftsmen and engineers, including Glen Robinson, McMasters, Bob MacDonald and Max Gebinger.

Frederick S. Clarke and Steve Rubin. “Making Forbidden Planet.” Cinefantastique, vol. 8, no.s 2-3 (Spring 1979): pp. 4-67. [caption on page 50 and photo on page 51].