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  2. US error coins - Wikipedia

    en.wikipedia.org/wiki/US_error_coins

    Coins minted with a die break have a thin line or lines that are raised running across the surface of the coin. Below is a photograph of a 1954-S Jefferson nickel with a die crack along the top of the portrait of Jefferson. A die break can create coins that have deep impressions in a coin that is filled in with metal.

  3. Mint-made errors - Wikipedia

    en.wikipedia.org/wiki/Mint-made_errors

    An off-center coin is produced when the coin is struck once, albeit off center. Unlike a broadstrike, the punch is not in the center of the coin, but rather the edge. This results in a coin which is not circular. The coin gives a freakish appearance as a result, and various amounts of blank planchet space are visible.

  4. Nazi memorabilia - Wikipedia

    en.wikipedia.org/wiki/Nazi_memorabilia

    Photo: Jack de Nijs / Anefo. Nazi memorabilia are items produced during the height of Nazism in Germany, particularly the years between 1933 and 1945. Nazi memorabilia includes a variety of objects from the material culture of Nazi Germany, especially those featuring swastikas and other Nazi symbolism and imagery or connected to Nazi propaganda.

  5. Sheldon coin grading scale - Wikipedia

    en.wikipedia.org/wiki/Sheldon_coin_grading_scale

    The Sheldon Coin Grading Scale is a 70-point coin grading scale used in the numismatic assessment of a coin's quality. The American Numismatic Association based its Official ANA Grading Standards in large part on the Sheldon scale. [ 1] The scale was created by William Herbert Sheldon .

  6. 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 ...

  7. Coin collecting - Wikipedia

    en.wikipedia.org/wiki/Coin_collecting

    e. 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 ...

  8. Proof coinage - Wikipedia

    en.wikipedia.org/wiki/Proof_coinage

    Proof coinage. Proof coinage refers to special early samples of a coin issue, historically made for checking the dies (as in demonstrating that something is true) and for archival purposes. In modern times, proofs are often struck in greater numbers, especially for coin collectors ( numismatists ). [1] Nearly all countries have issued proof ...

  9. List of most expensive coins - Wikipedia

    en.wikipedia.org/wiki/List_of_most_expensive_coins

    List of most expensive coins Price Year Type Grade Issuing country Provenance Firm Date of sale $18,900,000 1933 1933 double eagle: MS-65 CAC United States: King Farouk of Egypt: Sotheby's [1] June 8, 2021 $12,000,000 1794 Flowing Hair dollar: SP-66 CAC United States Neil, Carter Private sale [2] January 24, 2013 $9,360,000 1787 Brasher ...

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