MONACO - MONACO Rainier III (1949-2005). 10 franc gold coin, 25th anniversary of reign, burnished blank (PROOF) 1974, Paris. Av. RAINIER. III. PRINCE. OF. MONACO. Bust left; below signature G. SIMON. Rv. 10 FRANCS. Grimaldi shield surmounted by the figure of Rainier III; below (different) 1949.1974 (different). G.MC156 - KM.P18a; Gold - 38.8 g - 26 mm - 6 h This is the second highest grade (3)! NGC PF 66 ULTRA CAMEO (8527953-018). Burnished blank (PROOF) with intense cameo appearance (ULTRA CAMEO). Only 250 struck. Corner flower.