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  2. Cupronickel - Wikipedia

    en.wikipedia.org/wiki/Cupronickel

    Cupronickel or copper–nickel (CuNi) is an alloy of copper with nickel, usually along with small quantities of other metals added for strength, such as iron and manganese. The copper content typically varies from 60 to 90 percent.

  3. Polish coins and banknotes - Wikipedia

    en.wikipedia.org/wiki/Polish_coins_and_banknotes

    Value and (100) leaves in full-circle shape 2 zł 21.5 mm Core: 12 mm 5.21 g Ring: Aluminium bronze Center: Cupronickel: Plain Value and 2 leaves in the ring portion 1994 5 zł 24 mm Core: 16 mm [2] 6.54 g [2] Ring: Cupronickel Center: Aluminium bronze: Irregularly milled State title and the eagle of the coat of arms: Value and 5 leaves in the ...

  4. Nickel (United States coin) - Wikipedia

    en.wikipedia.org/wiki/Nickel_(United_States_coin)

    A nickel is a five-cent coin struck by the United States Mint.Composed of cupronickel (75% copper and 25% nickel), the piece has been issued since 1866.Its diameter is 0.835 inches (21.21 mm) and its thickness is 0.077 inches (1.95 mm).

  5. Coins of the Swiss franc - Wikipedia

    en.wikipedia.org/wiki/Coins_of_the_Swiss_franc

    In 1968, the 83.5% silver coins were also replaced by Cupronickel, as the value of the silver in the alloy had exceeded its face value, and the silver coins were taken out of circulation in 1971. The 2 and 1 centime coins were taken out of circulation entirely in 1978 and 2007, respectively.

  6. Quarter (United States coin) - Wikipedia

    en.wikipedia.org/wiki/Quarter_(United_States_coin)

    It has a diameter of 0.955 inch (24.26 mm) and a thickness of 0.069 inch (1.75 mm). Its current version is composed of two layers of cupronickel (75% copper, 25% nickel) clad on a core of pure copper. [2] With the cupronickel layers comprising 1/3 of total weight, the coin's overall composition is therefore 8.33% nickel, 91.67% copper.

  7. Coinage metals - Wikipedia

    en.wikipedia.org/wiki/Coinage_metals

    Pre-1992 British pennies were made of 97% copper; but as of 2008, based on the price of copper, the value of a penny from this period is 1.5 new-pence. Modern British pennies are now made of copper-plated steel. Cupronickel, a base metal alloy with varying proportions of copper and nickel, was introduced as a cheaper alternative for silver in ...

  8. 1 euro coin - Wikipedia

    en.wikipedia.org/wiki/1_euro_coin

    The 1 euro coin (€1) is a euro coin with a value of one euro. It is made of two alloys: the inner part of cupronickel, the outer part of nickel brass. All coins have a common reverse side and country-specific national sides. The coin has been used since 2002, with the present common side design dating from 2007.

  9. Cook Islands dollar - Wikipedia

    en.wikipedia.org/wiki/Cook_Islands_dollar

    Value Diameter Composition 1972–2010 Obverse Reverse 1 cent 18 mm Bronze: Queen: Taro leaf 2 cents 21 mm Queen: Pineapples: 5 cents 19 mm Cupronickel: Queen: Hibiscus blossom 10 cents 24 mm Queen: Orange on branch 20 cents 29 mm Queen: Fairy tern: 50 cents 32 mm Queen: Bonito (1972–87; also 1992) Sea turtle (1988–94) 1 dollar 30 mm Queen