| Euros
JBK is correct. When the Euro was introduced Greece did not have the capacity to mint all the coins they needed on their own, so coins for Greece were partially minted in other countries.
The coins for San Marino and the Vatican are minted in Italy. I'm not sure on Monaco, but I think they are minted in France.
Germany has five mints and the coins from Germany have mint marks as follows:
A = Berlin
D = Munich
F = Stuttgart
G = Karlsruhe
J = Hamburg
One other thing might be interesting: several member countries of the European Union which issue Euros have agreed to bring out coins jointly to certain themes (such as the 60th anniversary of the end of World War II). To mark these commemorative coins (usually in silver), they have agreed on a special star symbol which can be found on these coins.
Hope this helps!
| 
