FLOWN Apollo Robbins Sterling Silver Medallion Set. Apollo 7 through 17 medallions, each flown on their respective missions. Sizes vary from approx. 1 to 1.5 in. The Apollo 8 to 17 medallions were given to Wally Schirra by the crew from each of those flights. Each have mission dates engraved on the reverse side. [With:] Typed letter signed by Schirra listing all serial numbers with the Apollo 16 having no number. (12)