1990年中国熊猫50元精铸银币,重5安士,NGC PF68 Ultra Cameo,#6469730-002,不附原盒及证书,发行5000枚。 Peoples Republic of China, silver proof 50 yuan, 1990, Panda, ASW 5oz, NGC PF68 Ultra Cameo, cert. #6469730-002, without original box and certificate of issue, mintage of 5000 pieces