Flown Apollo 12 Robbins medal, approximately 1.25″ in diameter, with a raised design of the Apollo 12 mission insignia on the face and engraved on the reverse with the launch date of November 14, 1969, moon landing date of November 19, 1969, and return date of November 24, 1969. The sterling silver medal is serial numbered “173” and includes its original matching case. Condition is mint state. Accompanied by a signed letter of provenance from Thomas Stafford, reading, in part: “This medallion was carried to the Moon during November 14 to 24, 1969 on the Apollo 12 mission. It was given to me after the flight by Apollo 12 commander Charles Conrad, Jr. while I was Chief of the Astronaut Office…The medallion has been in my private collection since 1969...and is serial number 173 of the Apollo 12 set.” A fine association connecting two Apollo commanders—Stafford, who helped make the first moon landing possible, and Conrad who followed it.