(Disney, 1950s-1960s) A one-of-a-kind notebook containing materials and notes related to the groundbreaking Optical Printer used to create special effects for Walt Disney Productions. Among the contents are film negatives, stage elevation drawings, and technical notes relating to the Optical Printer technology that enabled the combination of live-action and animation in the same frame for "Man in Space," "Bedknobs and Broomsticks," "Gus," "The Gnomemobile," "The Happiest Millionaire," and more. Measuring 11.5" x 10.25'' and 1.75" wide, the piece is in good condition with creases, tears, and wear to the binder and its contents.