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The U.S. first struck 5¢ nickel coins in 1866. All nickels from that date to the present except for the famous "war nickels" (mid-1942 to 1945) are made of the same metal, an alloy of 75% copper and 25% nickel. "War nickels" were made of 35% silver, 56% copper, and 9% manganese because nickel was needed for the war effort. These coins are distinguished by the extra large mint mark over the dome of Monticello. They have been worth up to 90¢ for their silver content. In August 2009, the value of the metal in the standard nickel was about 5 cents, due to the rising costs of copper and nickel.

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