A Chinese watercolor and ink painting on paper of a rock by Yi Dachang. It has an inscription, two seals, and is mounted on a paper backing with silk dowels. Dimensions are: 26 inches tall X 8 1/2 inches wide, 66 cm X 21.6 cm. All measurements are approximate. High resolution photos can be found here. Condition: It is in overall good condition with minor creasing. Provenance: From Mrs. Lim in Boston, Massachusetts. The piece was acquired by her father and uncle in the United States.来源：來自波士頓林太太收藏。這批書畫由林太太的父親和叔叔多年來購藏於美國。