Rare cover with a “Missile Fired from…Cape Canaveral, Florida” cachet, postmarked on July 21, 1961, the date of the Mercury-Redstone 4 mission, signed in black ink by the Liberty Bell 7 pilot, “Virgil I. Grissom,” and in fountain pen, “Wernher von Braun.” In very fine condition. Accompanied by a full letter of authenticity from Zarelli Space Authentication.
