1865, Kingdom of Belgium, Leopold I. Gold 20 Francs (20 Frank) Coin. 6.44gm! Mint Year: 1865 Reference: KM-23. Engraver: Leopold Wiener Denomination: 20 Francs (20 Frank) Material: Gold (.900) Diameter: 22mm Weight: 6.44gm Obverse: Bare bust of Leopold I of Belgium right. Signature (L. WIENER) below bust truncation. Legend: LEOPOLD PREMIER ROI DES BELGES Reverse: Value (20) a ...