 They have a common reverse, portraying a map of Europe, but each country in the eurozone has its own design on the obverse, which means that each coin has a variety of different designs in circulation at once.Four European microstates which use the euro as their currency also have the right to mint coins with their own designs on the obverse side.The coins, and various commemorative coins, are minted at numerous national mints across the European Union to strict national quotas.