Flown Russian MIR-Soyuz TM-21 postal cover from the combined US/Russian Shuttle-Mir Program, signed by STS-71 astronauts Norm Thagard, Robert L. Gibson, Ellen Baker, Charles Precourt, Bonnie J. Dunbar, and Gregory J. Harbaugh, and by TM-21 cosmonauts Gennadi Strekalov and Vladimir Dezhurov. In fine condition. Accompanied by a photocopied letter of authenticity. From the collection of aerospace memorabilia specialist Ken Havekotte.
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