China 2013 One Set (4 Pieces of 1oz Silver Coins) – World Heritage – Huangshan Mountain. Purity: 99.9% Silver. Weight: 4 x 1 Oz (31.1 g). Face Value: 4 x 10 Chinese Yuan. Mintage: 50,000 per set. Condition: Mint and top condition, with COA and box.