1861, Belgium, Leopold I. Copper-Nickel 20 Centimes CoinMint Year: 1861 Reference: KM-20. Denomination: 20 Centimes Material: Copper-Nickel Diameter: 26mmWeight: 7gmLeopold I (Leopold George Christian Frederick; German: Leopold Georg Christian Friedrich; Prince of Saxe-Coburg-Saalfeld, later Prince of Saxe-Coburg and Gotha, Duke of Saxony; 16 December 1790 – 10 December 1865) w ...