Mailing envelope, 6.5 x 3.5, signed along the bottom in black felt tip, “S. Christa McAuliffe,” to which was later added a stamped Goddard Space Flight Center 51-L Launch cachet, a January 28, 1986, Greenbelt, North Carolina postal cancellation, and two Apollo-Soyuz postage stamps. In fine condition. Pre-certified Steve Zarelli and RR Auction COA.
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