In worn condition your 1855 5 centimes catalogs for $1 to $8 US dollars, depending on mint mark. If it were in better shape, i.e., average circulated wear, the value would go up by at least a factor of 2, maybe more.
Most of the coins in this series are like yours, Karine. They are worth a few dollars, but not much more. There are better dates and mint marks, as follows:
1857A
1857B
1857BB
1855D
1857D
1855K
1857K
1855MA
1857MA
1857W
The coins in the above list catalog over $50 in average circulated condition. Be sure you understand what 'catalog' means by using the Important Terminology link at the upper left.
