Subcategories
Coins can be seen as being of one of three types:
Regular issue coinage are the normal coins intended to be used in commerce every day and are typically issued with the same design for several years, e.g. euro coins.
Circulating commemoratives are intended to be used for commerce, but the design will only be issued for a limited time, is intended to draw some attention to a specific event or person. Examples include the €2 commemorative coins, or U.S. 50 State Quarters.
Non circulating legal tender (NCLT) are coins which are legal tender, and thus can in theory be used to purchase goods or services, but are not intended to be used in such a manner. Rather, they are intended to be used only as souvenirs, and are often produced in gold or silver with a proof finish.
Read more about this topic: Commemorative Coin