Limited edition flown cover that was carried to the International Space Station as part of Expedition 66 in October 2021. Numbered 4/7, the cover features a color cachet and postmarks honoring John Glenn and the 60th anniversary of his historic Mercury-Atlas 6 flight on February 20, 1962. The cover is signed in black ballpoint by seven astronauts present on the ISS—Raja Chari, Thomas Marshburn, Kayla Barron, Mark Vande Hei, Matthias Maurer, Pyotr Dubrov, and Anton Shkaplerov—who paid tribute to Glenn during a special ISS ceremony on February 20, 2022. In very fine condition.
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