Monaco Coins 20 Francs 1950 Prince Rainier III of Monaco
Obverse: Bust of Rainier III, Prince of Monaco.
Lettering: RAINIER III PRINCE DE MONACO 1950.
Engraver: Pierre Turin.
Reverse: The Royal Coat of Arms of Monaco. The Grimaldi motto: DEO JUVANTE, is Latin for "With God's help".
Lettering: 20 FRS DEO JUVANTE.
Edge: Smooth.
Years: 1950-1951.
Value: 20 Francs.
Metal: Aluminium-bronze.
Weight: 4.1 g.
Diameter: 23.5 mm.
Thickness: 1.6 mm.
Shape: Round.
Rainier III, Prince of Monaco
Rainier III (Rainier Louis Henri Maxence Bertrand Grimaldi; 31 May 1923 – 6 April 2005) ruled the Principality of Monaco for almost 56 years, making him one of the longest ruling monarchs in European history. Though internationally known for his marriage to the American actress Grace Kelly, he was also responsible for reforms to Monaco's constitution and for expanding the principality's economy beyond its traditional casino gambling base. Gambling accounts for only approximately three percent of the nation's annual revenue today; when Rainier ascended the throne in 1949, it accounted for more than 95 percent.