It is now one of the treasures of the British Museum--the "Admonitions of the Instructress in the Palace" by Ku K'ai-chih of the Eastern Chin dynasty (317-420).
而這卷包「玉」的絹紙，就是舉世聞名的大英博物館鎮館之寶﹘﹘東晉顧愷之的「女史箴圖」。