Flight flown twenty-dollar bill, 6.5 x 2.5, series 1969, serial number K 03899817A, signed on the portrait side in black felt tip by Dave Scott, Jim Irwin and Al Worden. This bill was flown aboard the Endeavour and remained in the command module during the lunar orbit phase of the flight. Accompanied by two letters of provenance from Al Worden, one from 1971 on NASA letterhead, stating it was flown on the Endeavour, the second from 2002, again stating that the bill was carried aboard the Endeavour. Also included is a color 8 x 10 NASA photo of Worden in his space suit, signed in black felt tip, “To the Moon and Back, Al Worden, Apollo 15.” In fine condition. COA Scott Cornish and R&R COA.