Each country could choose its own images for the reverse face of the coins. You might find this
page insteresting.quote]
Yes, interesting. I did not know that all the coins had national smbols on the reverse side.
Just looking at my mini pile of euro coins, all 4.95 of it, all coins are German except the 1Euro which is French. Which is reasonably logical since my last trip to euro-land was to Germany, via Paris. Although the return was a bit of a pantomime via Paris and Amsterdam, which is a whole different story.
JimB