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What PROOF and UNC Mean for Coins
The condition and quality of a coin’s strike directly affect its collectible and investment appeal. Descriptions often include the labels PROOF and UNC,...


The commemorative coin of Kazakhstan is dedicated to the Soyuz-Apollo program, which became an important milestone in the history of world space exploration. The joint experimental flight of the Soviet Soyuz 19 spacecraft and the American Apollo spacecraft became a symbol of scientific cooperation between the two countries during a period when such projects had special international significance. The docking in orbit and the joint operations demonstrated new possibilities for cooperation in space and paved the way for future international missions. The 500 ₸ coin is struck in .925 silver and weighs 41.40 g. This issue highlights the contribution of space programs to the development of science and technology and to strengthening dialogue between nations.