China
People's Republic of China. Dragon & Phoenix Gold and Silver Proof Set 1990, silver 20 Yuan, KM318; and gold 200 Yuan, KM320, both are Gem Cameo Proofs in the original box and wooden presentation case with COA's both numbered 347. The case has one of the hinges broken. A very scarce, and popular, set. It is quite unusual to find a set with matching certificate numbers for both coins.
Estimate: 9000-10000 USD