Flown umbilical cable, S/N B009827, with connectors, carried on board Apollo 15 which connected the command module and lunar module, coiled and mounted to a 16 x 10 wooden plaque, with a small presentation plaque which reads, “This umbilical served as the electrical connection between Falcon (the LM) and Endeavour (the CM) during the flight of Apollo 15. July 26-Aug. 2, Apollo Year 3 / Presented by the crew of Apollo 15 to Deke Slayton.” In fine condition. A critical flown item which provided necessary power to ‘Falcon’ until it undocked and proceeded to the Hadley Rille in Apennine Mountain region of the Moon. Provenance: Aurora Galleries, 2003; Deke Slayton Family Collection. RRAuction COA.