collector grade

Coin collecting is the collecting of coins or other forms of minted legal tender. Coins of interest to collectors include beautiful, rare, and historically significant pieces. Collectors may be interested, for example, in complete sets of a particular design or denomination, coins that were in circulation for only a brief time, or coins with errors. Coin collecting can be differentiated from numismatics, in that the latter is the systematic study of currency as a whole, though the two disciplines are closely interlinked.
Many factors determine a coin's value including grade, rarity, and popularity. Commercial organizations offer grading services and will grade, authenticate, attribute, and encapsulate most coins.

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