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1913-1938 Buffalo Nickel Coin Guide. The Buffalo Nickel shared the same specifications as the prior series for the denomination. The composition consisted of 75% copper and 25% nickel. Each coin has a standard weight of 5 grams, or 77 grains, with a diameter of 21.2 mm. The edge of the coin is plain.
Test Digital Scale Calibration With Coins. To test a digital scale if you don't have a special calibration weight you can use coins: (Make sure to use new, shiny coins. Worn coins will weigh less). . A U.S. nickel (5-cent coin for non-Americans) weighs exactly 5.00 grams and a U.S. cent (since 1983) weighs exactly 2.50 grams. . U.S.