 Each of the euro-area countries have a common reverse, portraying a map of Europe, but some of them have its own design on the obverse, which means that each coin has a variety of different designs in circulation at once.Four European microstates (Andorra, Monaco, San Marino, and Vatican City) which use the euro as their currency also have the right to mint coins with their own designs on the obverse side.Unlike the "official" members of the Eurozone, Montenegro does not mint its own coins and therefore does not have its own national side of the euro coins.