1997年50元。熊猫系列。双金属,发行量仅2,800枚。双面边缘多彩,镜面底板,霜化图文,光彩熠熠。NGC PROOF-68 ULTRA CAMEO.CHINA. 50 Yuan, 1997. Panda Series. NGC PROOF-68 ULTRA CAMEO.Fr-B51; KM-1000; PAN-286a. Bi-metallic coinage. From a mintage of only 2,800 pieces. Some iridescent peripheral tone on both sides. Brilliant with hard mirror fields and frosted cameo devices.