King George III Silver Crown Coin – Great Britain. For Sale – 1819 LX. King George III Silver Crown Coin – Great Britain Diameter – 37.6 mm Weight – 28.3 grams Metal – Silver couple of scratches to chin of George. The coin in the photos is the coin you will receive. Diameter – 37.6 mm. Weight – 28.3 grams. Couple of scratches to chin of George. The coin in the photos is the coin you will. Sorry, our items are NOT available for pick-up. No additional information at this time. You might also like. 1974 Luxembourg 10 Francs Coin. 1921 Sweden 2 Ore Coin. 1923 France 2 Francs Coin.