Do u know -- The Value of Coin?

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The market exchange value of a coin comes from its historic value, and or the intrinsic value of the component metal (for example gold coins, silver coins or platinum coins). Occasionally coins are minted that have fiat values lower than the value of their component metals. Examples of this currently include the US Nickel and US Penny To distinguish between these two types of coins, as well as from other forms of tokens which have been used as money, monetary scholars have defined three criteria that an object must meet to be a "true coin". These criteria are: It must be made of a valuable material, and trade for close to the market value of that material. It must be of a standardized weight and purity. It must be marked to identify the authority that guarantees the content.