YUN SHOUPING (1633-1690) Bird on Willow Tree Hanging scroll, ink and colour on paper 110.8 x 37.5 cm. (43 5/8 x 14 3/4 in.) Inscribed with a poem and signed, with four seals of the artist Four collector’s seals: two of Jin Dejian (1810-1887 After) and two of Chen Zhen (20th Century)