You've got to give the country that uses the centime. Centime is used primarily as a one cent coin in French speaking countries.
1.000.000 coins were struck in 1914. Value : about 10 dollars in good condition.
There are at least twenty countries who issued a twenty centime coin in 1921. It would depend on the country. In all probability, if it was Belgian, or French, or Haitian, it would not be worth more than a dollar.
1.995.900 coins were struck in 1916; value: about 3 dollars only.
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The centime was a unit of money in France for centuries, so the date on your coin is an important piece of information that you need to know before assigning a value. If the coin is recent, i.e. after 1960, it's a common circulation coin worth only a few cents in the U.S. If the date is earlier, please post a new question with its date and an estimate of how worn it is.
It's an obsolete coin that was worth 1/10 of a franc. Assuming you have a modern French 10 centime coin, it was worth about 2 cents at the time France switched to euros back in 2002. If your coin is older than 1960 please post a new question that includes its date.
G. Raoult has written: 'Les ondes centime trique'
The 20-centime coin was very common in France up till the euro was adopted in 2002. At that time it was worth about 4 US cents.