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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 500 ₸ silver coin is dedicated to the Vostok spacecraft, which is associated with one of the most important events in the history of world space exploration. It was aboard this spacecraft that Yuri Gagarin made humanity’s first journey into space on April 12, 1961, launching from the Baikonur Cosmodrome. The issue highlights Kazakhstan’s special role in the exploration of outer space, as Baikonur became the starting point of human spaceflight. The image of Vostok on the coin recalls the technological breakthrough of its era and the event that opened a new chapter in the study of the Universe. The coin is struck in .925 silver, weighs 41.40 g, and has a diameter of 38.61 mm. This issue is of interest as a commemorative piece related to the history of space exploration and the heritage of Baikonur.