FLOWN Apollo 15 Crew Emblem Postal Cover. Approx. 3.5 x 6.5 in. envelope postmarked on 26 July 1971 at the Kennedy Space Center, Florida with an additional postmark on 7 August 1971 from the "U.S.S. Okinawa". The Apollo 15 crew carried a set of these postal covers to the lunar surface. The cover is number 101 of 300 and has a cachet of the crew emblem with a CSM streaking behind and propeller pilot wings. The twin stamp showing the lunar rover was first issued during the flight. SIGNED BY DAVE SCOTT, AL WORDEN, AND JIM IRWIN. [With:] A notarized letter dated 19 July 1983 certifying that the cover was flown to lunar surface and SIGNED BY DAVE SCOTT, AL WORDEN, AND JIM IRWIN. (2)