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
Irish euro coins their obverse side: a Celtic harp based on the Trinity College Harp, flanked to the left and right by the word "ÉIRE" (Irish for Ireland) and the year the coin was struck, written in Gaelic type. These in turn are surrounded by the 12 stars of the flag of Europe. On the one-euro coin the stars appear on the gold coloured surround with the harp and words in the silver coloured centre. The colours are in the reverse for the two euro coin. The following table shows the mintage quantity for all Irish euro coins, per denomination, per year. Limited