China
People's Republic of China. Lot of three Proof silver 10 Yuan 1985, 1986 and 1990, All certified by NGC as follows: 1985 (Ox) - PF68 Ultra Cameo (with original box and COA), 1986 (Tiger) - PF68 Ultra Cameo (with original box and COA) and 1990 (horse) PF68 Ultra Cameo.
Estimate: 500-600 USD