Commemorative cover with a color cachet of the STS-9 or Spacelab 1 mission insignia, postmarked at Edwards Air Force Base on the mission landing date of December 8, 1983, signed in ink and felt tip by all crew members except for John Young-Brewster Shaw, Owen K. Garriott, Robert Parker, Ulf Merbold, and Byron Lichtenberg. In fine condition. Accompanied by a full letter of authenticity from Zarelli Space Authentication.
