2012 Monaco €2 Proof coin — officially issued by the Principality of Monaco to commemorate the 500th anniversary of Monaco’s sovereignty: Overview Country: Monaco Face Value: €2 Year: 2012 Commemorative Theme: 500th anniversary of the foundation of Monaco’s sovereignty under Lucien I Grimaldi (1487–1523). His portrait appears on the coin. Diameter: 25.75 mm Weight: 8.5 g Thickness: ~2.2 mm Composition: Bimetallic — outer ring copper-nickel, inner core nickel-brass. Proof mintage: 10,000 pieces (limited) I am selling the complete set as shown in the photo. The cardboard box has a slightly dented corner; the case and the coin itself are free of any damage.”