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  2. Coin collecting - Wikipedia

    en.wikipedia.org/wiki/Coin_collecting

    This is most common with coins whose metal value exceeds their spending value. [22] Modern-day coins are a popular and important part of coin collecting. Speculators, be they amateurs or commercial buyers, may purchase coins in bulk or in small batches, and often act with the expectation of delayed profit. [13]

  3. Coins of the United States dollar - Wikipedia

    en.wikipedia.org/wiki/Coins_of_the_United_States...

    These coins began circulating on February 15, 2007. Starting 2012, these coins have been minted only for collectible sets because of a large stockpile. The Susan B. Anthony dollar coin was minted from 1979 to 1981 and 1999. The 1999 minting was in response to Treasury supplies of the dollar becoming depleted and the inability to accelerate the ...

  4. Numismatics - Wikipedia

    en.wikipedia.org/wiki/Numismatics

    Numismatics is the study or collection of currency, including coins, tokens, paper money, medals, and related objects.. Specialists, known as numismatists, are often characterized as students or collectors of coins, but the discipline also includes the broader study of money and other means of payment used to resolve debts and exchange goods.

  5. Glossary of numismatics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_numismatics

    Standard proof coins have the fields mirrored and the design and lettering frosted. rim The raised portion of the design along the edge that protects the coin from wear. [1] It also makes the coins stackable and easy to roll by machine. round A round, one-ounce bullion piece, generally issued privately.

  6. Obverse and reverse - Wikipedia

    en.wikipedia.org/wiki/Obverse_and_reverse

    Roman imperial coin, struck c. 241, with the head of Tranquillina on the obverse, or front of the coin, and her marriage to Gordian III depicted on the reverse, or back side of the coin, in smaller scale; the coin exhibits the obverse – "head", or front – and reverse – "tail", or back – convention that still dominates much coinage today.

  7. List of mints - Wikipedia

    en.wikipedia.org/wiki/List_of_mints

    Methods used at mints to produce coins have changed as technology has developed, with early coins either being cast using moulds to produce cast coins or being struck between two dies to produce hammered coin. Around the middle of the 16th century machine-made milled coins were developed, allowing coins of a higher quality to be made.