1988年中国「清明上河图」精铸银币20元一套6枚,各重2盎司含.999银,总含银量12盎司,评PCGS PR68DCAM 至 PR69DCAM,连原盒及证书,发行18800套。People s Republic of China, A City of Cathay handscroll painting, 1998, set of 6x silver proof 20 Yuan, rectangular shape, each weighs 2oz containing .999 silver, total ASW of 12oz,graded PCGS PR68DCAM to PR69DCAM. with original packaging and certificate of authenticity, certificate number 10821, mintage of 18800 sets (6)