Flight-flown Apollo 15 Robbins Medal, approximately 1.5 diameter, with a raised design on the face of the Apollo 15 mission insignia. The reverse of the sterling silver medal is engraved “Man’s Flight Through Life Is Sustained By The Power Of His Knowledge” along with the July 26, 1971, launch date, July 30, 1971, moon landing date, and August 7, 1971, return date. This medal is serial numbered “071” along the rim. Normal condition. Made by the Robbins Company of Attleboro, Massachusetts, astronauts who are in line for a flight have the option of purchasing the medallions for themselves, family, and friends as personal souvenirs. The medals are made available only to the astronauts. At the conclusion of a flight, the tokens are sent back to Robbins, where they are engraved on the reverse, polished, numbered, and returned to the astronauts. The dyes are later destroyed. Remarkably scarce flight-flown mementos such as this—particularly one flown to the moon—rarely find their way to the marketplace. Accompanied by a letter of authenticity from Joseph P. Kerwin, who at the time was a member of the Astronaut Flight Office and later was a science pilot onboard Skylab 2. RRAuction COA.