Depicts coat of arms of San Marino, encircled by the twelve stars of Europe. Date and mintmark (R) above. The initials of the designer (stylised Ch) on the right. The country name below. The initials of the engraver below between stars.

The coat of arms of San Marino probably originated in the fourteenth century. The official coat of arms of the Republic is surmounted by a closed crown, the symbol of sovereignty. The shield is azure, three mountains vert, towers argent, windowed, embattled and masoned sable, surmounted by ostrich plumes argent. The shield is surrounded by two branches vert, overlapped in saltire below the shield, one of laurel, the other of oak, fructed or. On a ribbon argent the motto LIBERTAS in capital letters sable.

Designer: Frantisek Chochola
Engraver: Ettore Lorenzo Frapiccini

A geographical map of Western Europe spans the outer ring and inner core on the right side of the coin. The inscription 1 EURO is superimposed over the map of Europe, with the numeral “1” located in an open field representing the eastern Atlantic Ocean.

12 stars are located on the right side of the outer ring, with six stars atop the map of Europe and six stars below it; six vertical stripes cut across the inner core of the coin, visually connecting the upper and lower star segments.

Luc Luycx, a designer at the Royal Belgian Mint, designed the Euro’s common reverse; his initials, LL, are seen on the right side of the design, just under the “O” in “EURO.”