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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). The silver half dime, equal to
Nickel silver, maillechort, German silver, [1] argentan, [1] new silver, [1] nickel brass, [2] albata, [3] or alpacca [4] is a cupronickel (copper with nickel) alloy ...
The 1939-D nickel with a mintage of 3,514,000 coins is the second lowest behind the 1950-D nickel. ... Can be told apart from the non-silver nickels since these have ...
Dimes, quarters and half dollars are also struck in 90% silver for special annual collector's sets. The silver-colored Susan B. Anthony dollar was replaced with gold-colored Sacagawea dollar in 2000 and Presidential Dollars 2007-2016; though the composition changed, the coin's size and weight remain the same.
Nickel is preeminently an alloy metal, and its chief use is in nickel steels and nickel cast irons, in which it typically increases the tensile strength, toughness, and elastic limit. It is widely used in many other alloys, including nickel brasses and bronzes and alloys with copper, chromium, aluminium, lead, cobalt, silver, and gold ( Inconel ...
The Silver Proof set became a standard product of the United States Mint in 1992, containing a dime, quarter, and half dollar composed of 90% silver. The compositions for the penny, nickel, and dollar (introduced to the set in 2000) remained the same as in the standard proof sets. [21] In 2019, the purity of the silver coins was changed to 99.9 ...
American wartime "silver nickels" were composed of 56% copper, 35% silver, and 9% manganese. The reason given for this composition is that it matched the magnetic and electrical properties of 75% copper/25% nickel nickels, which was important for vending machines. Modern American dollars contain a small amount of manganese. Magnesium
This list does not include formerly-circulating gold coins, commemorative coins, or bullion coins. This list also does not include the three-cent nickel, which was largely winding down production by 1887 and has no modern equivalent.