Flown sterling silver Fliteline medallion one inch in diameter, flown aboard the Gemini X mission. The face bears a raised mission emblem, with the mission name and date on the reverse. Scattered surface wear, mild rubbing, and some light surface marks, otherwise fine condition. Accompanied by a 2007 certificate of authenticity from astronaut Ed Gibson, stating the medal “was flown on the Gemini X mission…and has been in my possession since being acquired directly from the mission’s flight crew during the time I was an active astronaut.” RR Auction COA.