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  2. Coining (mint) - Wikipedia

    en.wikipedia.org/wiki/Coining_(mint)

    A coin die itself, has been the main motive for many collectors coins and medals. One of the most recent and famous one, is the Austrian 700 Years City of Hall in Tyrol coin, minted on January 29, 2003. The reverse side of the coin shows the Guldiner silver coin. However, the design is negative, representing a coin die, as a reference to Hall's ...

  3. Coining (metalworking) - Wikipedia

    en.wikipedia.org/wiki/Coining_(metalworking)

    The term comes from the initial use of the process: manufacturing of coins. Coining is used to manufacture parts for all industries and is commonly used when high relief or very fine features are required. For example, it is used to produce coins, badges, buttons, precision-energy springs and precision parts with small or polished surface features.

  4. Coin edge - Wikipedia

    en.wikipedia.org/wiki/Coin_edge

    Reeding of edges was introduced to prevent coin clipping and counterfeiting. [2] [3] The main techniques of coin edging are edge mills of various types, which put a pattern on a smooth edge, after a coin and coin mills with edge rings, which pattern the edge at the time when the coin is being milled.

  5. 9 Rare American Coins That Are Worth a Lot of Money - AOL

    www.aol.com/finance/9-rare-american-coins-worth...

    If the mint mark is missing, it means the coin is rare and can fetch a lot of money on the collector’s market. Planchet errors: Planchets are the round, blank pieces of metal used to make coins ...

  6. Glossary of numismatics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_numismatics

    A coin with one type of metal in the center with an outer ring of a different metal. Examples are the 1 and 2 Euro coins and the Canadian "toonie" two-dollar coin. blank. Also called a planchet or flan. 1. A prepared disk of metal on which the design for a coin will be stamped. [1] 2. The un-struck or flat side of a uniface coin or medal. brass

  7. 7 Rare Coins To Sell in 2025 To Boost Your Retirement Savings

    www.aol.com/finance/7-rare-coins-sell-2025...

    Find Out: 5 Subtly Genius Moves All Wealthy People Make With Their Money. ... One way to lower the likelihood of that happening is to cash in valuable items – including rare coins. Depending on ...

  8. Milled coinage - Wikipedia

    en.wikipedia.org/wiki/Milled_coinage

    In modern practice in the United States, milling, or a milled edge, can refer to the raised edge on the coin face, applied by a special milling machine after the planchets are cut out and polished. In addition, the reeding of coins of higher value, applied by the collar holding the coin when it is stamped, can be considered part of the milled edge.

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