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The common metal commemorative coins are divided into common and fine coins. The custom commemorative coin is used for the design and casting of metal paper or common coins, the denomination of paper money, printing materials and its legal value, mainly in the design and casting of major events, festivals, memorial days and rare animals at home and abroad. It is a national currency circulation but has the legal currency commemorative significance. After issuance, it can be connected with other circulation RMB equivalent logistics, and its face value is included in the market cash flow, and become a part of the money supply. Therefore, the coins in circulation are the first legal currency. Its face value is generally: one corner, one yuan, Yuan Wu, pick up yuan, etc., which can be the same as the circulating RMB of ordinary paper currency.

However, the circulation of coins is not only a simple currency, but also an important theme of special issue of commemorative coins. So it must be a memorial. This kind of commemorative meaning is fully embodied by the design of moral meaning. For example, the commemorative series of commemorative coins, with all famous great images as the basis, highlighting the theme, simple and clear. The 35th anniversary of National Day is a set of 3 coins, with the front design composed of national emblem, square and fireworks. The atmosphere of National Day celebration is clear at a glance.