1997年第一组澳门回归祖国纪念精铸银币一对，10元及50元，正面铸有“一国两制”，含.999银，总含银量6盎士，分别评NGC PF68 Ultra Cameo及PF69 Ultra Cameo，连原盒及证书，编号0062543 及0003456，分别发行88000 及5000枚，NGC编号#6136991-031 及3136996-003。Macau a pair of Macau s Return to China silver proof, 10 yuan and 50 yuan, Macau series I One Country Two Systems , 1998, weight 1 oz and 5oz, containing .999 silver, total ASW of 6oz, graded NGC PF68 Ultra Cameo and NGC PF69 Ultra Cameo, with original box and certificate, serial number 16462 and 00706, mintage of 88000 and 5000 pieces respectively, NGC cert #6136991-033 and 3136996-002 (2).
