APOLLO 13 Robbins Medallion mission FLOWN AROUND THE MOON from the personal collection of NASA astronaut STORY MUSGRAVE. Sterling silver medallion measures approximately 1.25″ in diameter, with a raised design of the Apollo 13 mission insignia on the face being three horses driving Apollo's chariot across the surface of the moon. The reverse boasts the names of the crew as flown, and is engraved with the launch date of April 11, 1970, and the return date of April 17, 1970. The medal is serial numbered "341" and stamped above with the Robbins "Sterling" hallmark.