Bidspirit auction | 9 - X-15 Event Cover

9 - X-15 Event Cover Collection - A hard to find collection of X-15 Pilot signed event covers from the Hypersonic X-15 program. There are four hand signed covers that have been signed by Pilots Scott Crossfield who made the first X-15 flight in 1959 with 14 total flights, William ”Pete” Knight who made 16 total flights, Robert White who made 16 total flights, Bill Dana who made 16 total flights and Joe Engle who made 16 total flights. There are also several additional vintage and anniversary covers included. All are in very good condition with expected handling wear. Condition: #1001