Robert Gilliland - Lockheed Test Pilot - Autographed Commemorative Postal CoverJG Autographs4.6(103)$20(1 bid)
Chuck Sewell - First Taxi Test of the Grumman X-29A Forward-Swept Wing Aircraft - Autographed CoverJG Autographs4.6(103)$20(1 bid)
Warren J. North & Joe Engle - NASA - Autographed Commemorative Postal CoverJG Autographs4.6(103)$20(2 bids)
Robert White - Northrop X-15 Test Pilot - Autographed 1980 Postal CoverJG Autographs4.6(103)$20(2 bids)
Frank Borman - NASA Astronaut - Autographed Commemorative Postal Cover Inscribed to "Samuel"JG Autographs4.6(103)$25
NASA Test Pilots: Roger Carl Zwieg, R. Warren, Charles F. Hayes & K.J. Baker Autographed CoverJG Autographs4.6(103)$20(1 bid)
