Commemorative sheet for the National Advisory Committee on Aeronautics, 7.75 x 11, postmarked on two dates at Edwards Air Force Base, April 14, 1981, and October 14, 1997, signed in blue or black ink by eight storied X-1 pilots, including: Chuck Yeager, Scott Crossfield, Chalmers Goodlin, Gus Lundquist, Frank ‘Pete’ Everest, Alvin ‘Tex’ Johnston, Bob Champine, and John H. Griffith. In fine condition. Pre-certified Zarelli Space Authentication.
This item is Pre-Certified by STEVE ZARELLI
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