Four items signed by one or more X-15 pilots: a color glossy 10 x 8 photo of an X-15 altitude record flight on April 30, 1962, signed in black ink, "Robert M. White, B/General USAF"; a glossy 10.25 x 8 photo of William Knight posing in front of his rocket plane, "Wm. J. Knight, Col. Pilot, USAF, X-15A-2, 4,520 mph, Oct 3, 1967"; a glossy 8 x 10 photo of Forrest Petersen posing in his flight suit, signed in black felt tip, "Forrest S. Petersen"; and a staple-bound 21-page NASA News Release, 8 x 10.5, regarding the "X-15 to Enter Smithsonian," signed on the front cover in blue felt tip, "Joe Engle, Maj. Gen. USAF, X-15 Pilot," and in black ballpoint, "Robert M. White, B/General USAF." In overall fine condition.
