China
People's Republic of China. Four-piece gold 400 Yuan Proof Set 1979, 30th Anniversary of the Founding of the People's Republic, KM-PS1, featuring four gold 400 Yuan types, KM4-7, all Gem Cameo Proof in the plastic capsules of issue, with COA, and in the official wooden mint case. AGW 2 oz.
Estimate: 3000-3500 USD