• Obverse

On the obverse, the Cesta Tower; in the left field, the mint mark R of the Rome mint; in the upper right, the year 2021; the name of the issuing country SAN MARINO on the left; on the ring, twelve five-pointed stars pointing upwards.

• Reverse 

A map of the European Union on the right side of the obverse, extending onto the ring, between two sets of six parallel vertical lines, each marked with a star; on the right, on the ring, the monogram signature LL of engraver Luc Luycx. Legend: to the left of the map 1 and on the map itself EURO (the fourth letter on the ring).