MEDALLION CARRIED ON GEMINI 10.
Circular medallion, silver-plated, 1 inch across. Carried on Gemini 10. The crew mission emblem on the obverse illustrates the Gemini spacecraft and Agena target vehicle orbiting around a large Roman numeral "X." The reverse is engraved with the flight dates July 18-21, 1966.
Gemini 10 was the first flight of Michael Collins, who would later fly with Neil Armstrong and Buzz Aldrin on the Apollo 11 lunar landing mission. Accompanied by a Typed Letter Signed by Wally Schirra, which reads: "This ... medallion was flown on the flight of Gemini X during July 18 to 21, 1966. It was given to me after the flight by fellow astronauts John Young and Michael Collins."