John Young's flown heat shield fragment from the Gemini 10 spacecraft, encased in a cylindrical Lucite block measuring 3″ in diameter and 2″ tall, engraved on the bottom with the mission's name and dates, "Gemini X, July 18-21, 1966." In fine condition. Accompanied by a certificate of authenticity from Susy Young, wife of the late John Young, certifying that this heat shield fragment "was flown aboard the Gemini 10 mission, July 18-21, 1966. It has been a part of the John W. Young collection since returning from the mission."