CHINA. 5 Ounce Silver Medal, 1985. Panda Series. NGC PROOF-66 ULTRA CAMEO.,Bruce-MB3; PAN-29a. Struck for the 4th Hong Kong International Coin exposition. From a mintage of only 1,000 pieces. Some tiny pale milk spots. No breaks to frosted devices and quite brilliant. With case of issue.,NGC PROOF-66 ULTRA CAMEO.,