1980, Lake Placid Winter Olympic Games, 1 yuan, complete set of four proof brass coins, weight 12g x4, minor usual toning, the set is officially sealed in plastic board with Olympic Emblem, mintage 29,000 sets (Est. $200-$250) (Image)

1980, Lake Placid Winter Olympic Games, Alpine Skiing, 250 yuan, gold proof coin, weight 8g (0.917 gold), AGW 0.2358, certified by NGC, PF68 Ultra Cameo, mintage 20,000 (Est. $550-$600) (Image)

1980, Winter-Summer Olympic Games, 20 yuan and 30 yuan x3, set of four coins in proof quality, 10.35g and 15.0g x 3 (0.850 silver), ASW 1.5128oz, each coin is in individual plastic capsule in a box with COA for the set, mintage 20,000-29,000 (Est. $300-$400) (Image)

1980, Summer Olympic Games, Archery, 300 yuan, proof gold coin, weight 10.0g (0.917 gold), AGW 0.2948 oz, certified by NGC, PF 69 Cameo, mintage 15,000 examples (Est. $750-$850) (Image)