A four-part Chinese calligraphy in ink on yellow-ground paper with gold flecks by Yu Jianzhang. Some have inscriptions and seals. All four parts of the calligraphy are mounted on silk backings with silk dowels. Dimensions are: each measures 67 1/2 inches tall X 15 inches wide, 171.5 cm X 38.1 cm. All measurements are approximate. High resolution photos can be found here. Condition: All parts have cracking, creasing, wear to the surface, abrasions, repairs, and staining. Provenance: From Mr. Bien in Orange County, California. These items were passed down from his grandfather, Dr. Chang, and his father-in-law, Bill Chang.来源：來自加州橙縣卞先生收藏，傳承自其祖父和岳父。