There are 15 countries and so 120 different coins.
Moreover, here there is no the liste of coins with a letter.
In fact, some coins have a letter on the face.
This is the letter which reprensent the place where the coins have been created.
For example, On the coins of Germany there ar the letters A, D, F, G or J.
For more details, download the .xls file in "EXCLUSIF" menu.