The euro coins have a common side for all member states of the euro area and a national side. The national side indicates the issuing country. All eight denominations from all countries are accepted in the euro area countries.
Euro Coins

Euro coins in Austria (in German only)
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Euro-Münzen in Österreich – Ausgabe 2009 (1404 KB)
The eight euro coins in circulation have a common side and a national side.
Each member state of the Eurosystem can issue a EUR 2 commemorative coin once a year. These coins have the same features and properties and the same common side as normal EUR 2 coins. What makes them different is their commemorative design on the national side. Only …