20 Francs Belgium Gold Coin (Circulated) Tweet Details CoA: No Diameter: 21.4 mm Edge Design: Reeded Face Value: 20 Francs EURO Issuing Country: Belgium Manufacturer: Belgian Royal Mint Metal Type: Gold Product Type: Coin Purity: 0.9 Series: Francs Thickness: 1.4 mm Weight: 0.1867 Troy Ounce Year: Random