FDC with a cachet honoring the Golden Anniversary of Aviation, signed on the front in ink by nine Aviation Hall of Famers: Jacqueline Cochran, Roscoe Turner, Eddie Rickenbacker, Grover Loening, Donald Douglas, Sr. Carl Spaatz, Juan Trippe, Frank Piasecki, and Calvin Bolster. In fine condition. An outstanding collection of names and any one of them would be desirable on its own, but to find them all on a single item is indeed rare. RRAuction COA.