Coin-Edge Ridges

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There are 118 ridges on the edge of a dime, and 119 ridges on the edge of a quarter.  There are no ridges on the edges of pennies and nickels.  For more information about the history of U.S. coins, click here and click here.

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For Numismatics: First U.S. Mint Anniversary

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On this day in 1792, the U.S. Congress authorized the first mint to make U.S. coins, which was to open in Philadelphia, Pennsylvania.  For more information click here.

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