You are probably asking about a 1922 coin from the Belgian Congo ("Congo Belge" in French). There were three different denominations produced in 1922 - 10 centimes, 50 centimes and 1 franc. Assuming that your coin has some appreciable signs of wear, the coin is likely worth no more than a dollar or two.
"Cinquante centimes."
"Cinquante centimes."
50 centimes
35.00
82.5% silver
circulated from 10 to 20 dollars
340.00
Switzerland uses the Swiss Franc, symbol CHF, divided into 100 centimes. As of 2012 circulating coins are 5, 10, 20, and 50 centimes, and 1, 2, and 5 francs. Interestingly the 50 ctm coins show a denomination of ½ franc instead. The 10 ctm piece has had the same design and metal composition since 1879, making it one of the oldest continuous circulating designs in the world.
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In French, amounts less than 1 euro are typically expressed using the word "centime" (plural: centimes). For example, 0.50 euros would be said as "cinquante centimes" (50 centimes) and 0.75 euros would be said as "soixante-quinze centimes" (75 centimes).
36.491.942 coins were struck in 1918. Value : about 1 dollar.