1997-98年1000元和50元。 (t) CHINA. Duo of Proof Gold Issues (2 Pieces), 1997-98. Both GEM PROOF. Both coins in original plastic capsule and include mint presentation boxes.1) 1000 Dollars, 1997. Ottawa Mint. Fr-15; KM-71. Return of Hong Kong to China. AGW: 0.4708 oz. Includes numbered certificate.2) 50 Yuan, 1998. Shanghai Mint. Fr-207; KM-1153. 100th Anniversary of Zhou Enlai. AGW: 0.500 oz.