16. Xu 50 cents 1879 - 1946 (Silver và Copper-nickel) * Keydate: 1879,1884, 1885, 1894, 1895, 1896 50 CENT SILVER 1879 50 CENT SILVER 1884 50 CENT SILVER 1885 50 CENT SILVER 1894 50 CENT SILVER 1895 50 CENT SILVER 1896 50 CENT SILVER 1936 50 CENT NICKEL 1946