Kou Xian Ming Yue Pen Fu Rong Seal, by Han Yuesu, , Ming dynasty (1368-1644). Ivory, Length 3.9 cm, Width 3.95 cm, Height 2.95 cm. © Shanghai Museum.

Han Yuesu was a famous female seal carving artist of the late Ming dynasty and so was her husband. Her carving skill was influenced by her husband and the two were equally famous at the time. Her style was beautiful and refined. Few of her works were left, so this ivory seal is of great value. The characters on the seal is a line citing poem from Chang Jian, depicting the pattern of amber which looks like two dragons, one with the bright moon in mouth and the other with a lotus in blossom.