Depicts a portrait of Rainier III facing the left with a princely crown on the collar surrounded by the inscription "Rainier III, Prince of Monaco". The engraver's name, and the issue date are below.

Depicts a crowned coat of arms dividing the denomination, the motto below, the mint (on the left) and privy (on the right) marks next to the crown.

The coat of arms of Monaco serves as the symbolic representation of the House of Grimaldi, the reigning sovereigns of Monaco. It incorporates elements such as the Franciscan Friars, the crown, the collar of the Order of Saint Charles, and a red and argent lozenge, all of which hold historical significance dating back to events relevant to their ascendancy as rulers of Monaco since the 13th century. The supporters of the coat of arms are depicted as two Friars Minor, each with hair, beard, and vestments, holding raised swords while standing on a ribbon bearing the motto: DEO JUVANTE.

The Grimaldi motto, Deo Juvante, is Latin for "With God's help".

Mint mark of the Paris Mint (Monnaie de Paris in Pessac): Cornucopia (horn of plenty)

Privy mark of the Mint's Chief Engravers: Wing (Lucien Georges Bazor, 1931-1957)