Twin City Gold is pleased to offer this The Official NASA Manned Space Flight Emblems 20 Sterling Pieces Franklin Mint Offered here, in a beautiful custom frame, are the mission insignias of all the manned space missions between Gemini 5 and Apollo Soyuz. These were produced in a mintage of 5290 between 1977 and 1979. The twenty-five medals include mission information on the reverses and the sterling and Franklin hallmarks on the edges. Please be sure to view all photos! Browse our other listings to find great deals on estate jewelry, diamonds, coins, collectibles and more!