China
People's Republic of China. Three-piece platinum Proof Set 1990 including, 10 Yuan (1/10 oz), 25 Yuan (1/4 oz), and 50 Yuan (1/2 oz), KM277, 278, and 279, (KM-PS30) Gem Cameo Proof in the original hand-painted wooden case of issue and a capital plastic type holder with COA # 2395/2500. APW 0.85 oz.
Estimate: 1750-2000 USD