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The same nickel alloy that is used today. 75% copper, 25% nickel. In fact, the nickel still has the composition that original nickels had back in 1866 when the first nickels were struck. The only change to the nickel is during WWII on nickels dated 1941-1945 with a large mintmark over the Monticello, those nickels are 56% copper, 35% copper, and 9% manganese.

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14y ago

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