Off-metal struck on a Dominican Republic 10 centavos planchet. The coin is copper nickel, and weighs 2.6 grams ( a 10 centavo weighs 2.56 grams, so it's within tolerance.) These seem to be rare, but we've seen probably 3 or 4 of these over the years, including this example.
The error occurred when a 10 centavo planchet was fed into a press striking cents, and was struck. The U.S. Mint has often struck coins on contract for profit for different nations, which is how the planchet was at the mint at all.