Altitude indoctrination certificate issued to George Earl Adams Jr. by the Altitude Training Section, U.S. Army Air Forces, at Will Rogers Field, Oklahoma, April 3, 1944. Includes handwritten address and phone number for Bob Guthrie on verso.
Certificate of Discharge from Deferred Service issued to Earl H. M. Phillips by the Royal Air Force Volunteer Reserve, January 17, 1945. Includes handwritten notes on verso. One typed page.
U.S. Air Force Experimental Flight Test School diploma issued to Brien S. Wygle, September 25, 1955. Certifies that Wygle has completed a course in flight techniques and engineering principles of experimental flight testing.