The Silver Collection comes with an official certificate in a 3-coin collection case and is limited to only 1,000 sets worldwide. The Silver WWF Coin (10 Yuan, 999 Silver, 31.1 g, 40 mm, Proof). The silver coin features a Tibetan antelope in the foreground, with a bounding herd and a snow-covered mountain in the background. The obverse depicts People’s Republic of China Coat of Arms and year of issue 2011. The Silver Jubilee Medal (.999 Silver, 31.1 g, 40 mm, Proof). The silver medal depicts the Panda, symbol of WWF, the year of issue 2011 and a beautiful intricate design commemorating the 50th anniversary with the official WWF logo. The Silver Panda Coin (10 Yuan, .999 Silver, 31.1 g, 40 mm, Brilliant Uncirculated). The silver coin depicts a panda with its baby and in the obverse the Temple of Heaven.