2011年中国清华建校一百周年精铸纪念精铸金银币,包括10元银币及100元金币,重1盎司及0.25盎司,银币评NGC PF68 Ultra Cameo,金币PF70 Ultra Cameo,附原盒及证书。People s Republic of China, Tsinghua University Centenary Celebration Gold and Silver set, 2011, silver 10 yuan and gold 100 yuan, 1 oz and 0.25 oz respectively,the silver NGC PF68 Ultra Cameo, the gold PF70 Ultra Cameo. With the original packaging, box and certificate of issue (2)