You didn't provide the coin's date, so assuming its date is after 1960, you have a standard circulation only worth about 2.5 cents.
Centimes are part of the old currency system that was replaced by the euro in 2002. There were 100 centimes in a franc, and just prior to the euro a franc was worth about 13¢ U.S. Thus 20 centimes would be one-fifth of that.
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