Three aluminum commemorative coins, all approximately 1.25″ in diameter, issued between 2005 and 2007, each honoring a different unmanned Sputnik mission and its canine passenger. Coins are from Sputnik 2 (Laika), Sputnik 5 (Belka and Strelka), and Sputnik 9 (Chernushka). All three were issued by the Samara Industrial Complex, makers of the Soyuz spacecrafts, and are made from metal that was flown in space. RR Auction COA.
