Euro coins edge of the €2 coin also protects it from counterfeiting. Euro coins were designed in cooperation with organisations representing blind persons, and as a result they incorporate many features allowing them to be distinguished by touch alone. In addition, their visual appearance is designed to make them easy to tell apart for persons who cannot read the inscriptions on the coins. The coins increase in size and weight with value. Of the eight denominations of euro coins, the three lowest denominations are small, resemble copper in colour and are quite thin and light. The next three denominations resemble gold in
10 euro cent coin of Europe). To the right, in raised lettering, is "10 Euro Cent" with the '10' being shown much larger than the words. The designers initials, LL, appear next to the 0 in 10. Luc Luycx designed the original coin, which was much the same except the design was only of the then 15 members and shown with gaps between the states and raised rather than with an indented sea. The obverse side of the coin depends on the issuing country. All have to include twelve stars (in most cases a circle around the edge), the engraver's initials and the year