The shape of this vessel is based on a 13th century Islamic metal form, first translated by Chinese potters in the 15th century. See From Silver to Ceramic, Ashmolean Museum, Oxford, 1986, pl. 50. A similar example in the National Palace Museum, Taiwan, is illustrated in Blue and White Ware of the Ch'ing Dynasty, Hong Kong, 1968, Book II, pl. 4; and another in The Metropolitan Museum of Art is illustrated by S. Valenstein, A Handbook of Chinese Ceramics, 1989 ed., p. 257, no. 260.