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  2. Glossary of numismatics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_numismatics

    A false date put on a coin to defraud collectors, usually to make it appear more valuable. Such alterations are often easily spotted with the aid of a magnifying glass. anepigraphic coin A coin without an epigraph or inscription. Many ancient coins used only a simple picture of an animal to show value or weight. annealing

  3. National Numismatic Collection - Wikipedia

    en.wikipedia.org/wiki/National_Numismatic_Collection

    The National Numismatic Collection comprises approximately 1.6 million objects and is one of the world's largest and most diverse collections of coins, paper currency, medals, commodity currencies, financial instruments, exonumia, and related items. [1]

  4. Coin collecting - Wikipedia

    en.wikipedia.org/wiki/Coin_collecting

    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 ...

  5. 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 .

  6. GreatCollections - Wikipedia

    en.wikipedia.org/wiki/GreatCollections

    The coin was struck by the U.S. Mint in San Francisco, and is one of just two known proof coins to exist without its distinctive "S" mint mark. GreatCollections has graded the two highest value coins in history ; the 1933 Saint-Gaudens Double Eagle valued at $19 million, [ 27 ] [ 28 ] and the "Gold Cas", the 1000 BTC Casascius Physical Bitcoin ...

  7. Coin grading - Wikipedia

    en.wikipedia.org/wiki/Coin_grading

    Coin grading [1] is the process of determining the grade or condition of a coin, one of the key factors in determining its collectible value. A coin's grade is generally determined by six criteria: strike, preservation, luster, color, attractiveness, and occasionally the country/state in which it was minted. Several grading systems have been ...