Apollo 15 Lunar Mail cover, 1971. Postmaster General’s Collection. Loan from USPS.
During the 1971 Apollo 15 mission, astronauts Dave Scott and Jim Irwin spent three days exploring the Moon from the Lunar Rover. On the last day, Scott reached under the Rover’s seat for a pouch. It held an envelope bearing die proofs of two space stamps. Scott postmarked this cover while, 238,000 miles away, the USPS issued the stamps on Earth.