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
Euro coins happen if any of them adopted the euro. From 2015 there are 23 countries issuing coins with their own national sides, making it 184 different euro coins, not counting annual differences or commemorative coins. The national sides of all denominations of the euro circulation coins should bear an indication of the issuing Member State by means of the Member State’s name or an abbreviation of it. The national side should not repeat any indication on the denomination, or any parts thereof, of the coin neither should it repeat the name of the single currency or of its subdivision, unless such