Obverse: Head of Prince Charles III right. Legend: CHARLES III PRINCE DE MONACO Reverse: Crowned coat of arms behind two monks with swords, guarding shield with arms of the Principality of Monaco. Motto: DEO JUVANTE “Divide and Coquer!” Charles III (8 December 1818 – 10 September 1889) was Prince of Monaco and Duke of Valentinois from 20 June 1856 to his death. He was the founder of the famous casino in Monte Carlo, as his title in Monegasque and Italian was Carlo III.

Mintage 15 000