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  2. 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.

  3. Coinage metals - Wikipedia

    en.wikipedia.org/wiki/Coinage_metals

    Coins may be composed of multiple metals using alloys, coatings, or bimetallic forms. Coin alloys include bronze, electrum and cupronickel.Plating, cladding or other coating methods are used to form an outer layer of metal and are typically used to replace a more expensive metal while retaining the former appearance.

  4. 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 ...

  5. Glossary of numismatics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_numismatics

    bi-metallic coin 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.

  6. Category:Coinage metals and alloys - Wikipedia

    en.wikipedia.org/wiki/Category:Coinage_metals...

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  7. Coin capsule - Wikipedia

    en.wikipedia.org/wiki/Coin_capsule

    Two halves of a coin capsule 1884 Morgan Dollar in a coin capsule. A coin capsule or is a type of plastic capsule designed to prevent coins from becoming damaged by protecting it from outside contaminants, scratches and drops while allowing the coin to be viewed through transparent plastic.

  8. Group 11 element - Wikipedia

    en.wikipedia.org/wiki/Group_11_element

    Group 11 is also known as the coinage metals, due to their usage in minting coins [2] —while the rise in metal prices mean that silver and gold are no longer used for circulating currency, remaining in use for bullion, copper remains a common metal in coins to date, either in the form of copper clad coinage or as part of the cupronickel alloy.

  9. Talk:Coinage metals - Wikipedia

    en.wikipedia.org/wiki/Talk:Coinage_metals

    Electrum was a popular coinage-metal until people discovered that it is a natural alloy of the 4 components of copper, silver, gold, and other. Gold, silver, and copper stick together because of their chemical properties. After we discovered that electrum is an alloy, we made coins from the componet-metals, e.g. copper, silver, gold.

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