2 -Apollo 12 Moon Walker's Signed CoversBid Again Auctions (American Space Museum)4.4(21)$100Aug 29, 2026
APOLLO 11 CREW FULLY SIGNED FIRST DAY COVER (SEPTEMBER 9, 1969)Mega Oriental Arts Auction LLC4.3(1)$500Aug 23, 2026
2 - NASA Flight Director's Signed CoversBid Again Auctions (American Space Museum)4.4(21)$100Aug 29, 2026
