Chinese Export Silver Mug in Fitted Box. The mug, or tankard, is marked WH for Wang Hing '宏兴‘ the largest silver retailer in China from the 1860s to the 1940s, with shops in Canton, Shanghai, and then Hong Kong. The firm worked with over a hundred different silversmiths and this mug has the maker's mark of 沛记 (PeiJi).