People's Republic of China, set of 4x coloured silver proof 10 Yuan,1999, Peking Opera Series I,
'Cheng Yanqiu', 'Mei Lanfang', 'Xun Huisheng' and 'Shang Xiaoyun', each weigh 1oz, total ASW 4oz, with original box and certificate of issue,graded NGC PF 68 Ultra Cameo, PF 67 Ultra Cameo, PF 67 Ultra Cameo and PF 69 Ultra Cameo respectively, #6342453-029 to #36342453-032 (1 box of 4 coins)..
Estimate: 1900 - 3200