2009 Australia Lunar Series Ox 1/2oz Silver +1/20oz Gold Coins Set COA, BOX. Maximum Diameter:36.10mm+14.10mm. Purity:99.9% Silver+99.99% Gold. Maximum Thickness:2.30mm+1.40mm. Minimum Gross Weight:15.573g+1.556g. Come with COA and BOX. Good Luck for Everybody! Please view our other great auctions! For more information, please contact to me.