Issuer France Period Fifth Republic (1958-present) Type Current coins Dates 1974-1980 Value 50 francs (50 FRF) Currency New franc (1960-2001) Composition Silver 900‰ (Copper .100) Weight 30 g Diameter 41 mm Thickness 2.70 mm Shape Round Technique Press strike Orientation Coin strike ↑↓ Demonetized April 30, 1980