During his years as a test pilot and before becoming an astronaut, Jim McDivitt used this ‘knee pad' during his flights. The pad measures 6 x 9.5 x 3 with a built-in red-domed light (not tested), and a buckled strap for attachment around the upper leg, marked “U.S. Property/ Type MSU-163P Clipboard, Pilot's” and manufactured by Elbe File and Binder Co. There is a Pilot Identification label on the left side with a handwritten notation “MCDIVITT.” Accompanied by an annotated “Pilot's Flight Plan and Flight Log” page and a wooden pencil. Also accompanied by a certificate authenticity from Novaspace. A useful piece of test pilot equipment with the important connection to the Gemini 4 and Apollo 9 commander. RRAuction COA.