Portrait of Prince Rainier III. Above, "MONACO 2023" arches; below, "RAINIER III 31 MAI 1923". The outer ring features the 12 stars of the European flag.
A Western Europe map spans the coin's right side, with "2 EURO" overlaid—the "2" in the Atlantic. Twelve stars flank the map, six above and six below, connected by six vertical stripes across the inner core.