Depends on the coin- nation, denomination, mint marks, and condition. Your question is too vague to give you a real answer- sorry-
Being a copy, it's worth next to nothing.
10 Cents
Forty Dollars
How much is this coin worth
it is worth $120 per coin
how much is a 1867 Canadian penny worth
What you presumably have is a James Buchanan presidential dollar coin. It was minted in 2010 and is worth one dollar.
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How much is the Ten Dollar Independence Day coin of Bahamas worth
The coin is worth only a dollar.
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