Zhang Yanfu (Mongolian, act. ca. 1285–ca. 1345) Thorns, Bamboo, and Secluded Birds, datable to 1343 Yuan dynasty (1271–1368) China Hanging scroll; ink on paper; Image: 30 x 25 in. (76.2 x 63.5 cm); Overall with mounting: 8 ft. 6 3/4 in. x 27 1/2 in. (261