Pre-Production Pre-production material contains correspondence, notebooks, booklets, articles and other items on space exploration and concept artwork, the acquisition of properties [props] and costumes, production and contract agreements, production notes and notebooks, as well as commercial tie-ins. Included are black and white pictures of a village in Africa as well as a scale model, or maquette, of the Dawn of Man set with miniature toy apes, and used to test varying focal lengths of cameras. Aug 1951-1968