Yaozhou dishes of similar form with the duck and wave design are found in a number of major museum collections outside China. Examples of approximately the same size as the present lot are in the Victoria and Albert Museum, London, illustrated by J. Ayers in Far Eastern Ceramics in the Victoria and Albert Museum, London, 1980, no. 97; the British Museum, illustrated in Oriental Ceramics, The World's Great Collections, vol. 5, Tokyo, 1981, no. 77; and the Ashmolean Museum, Oxford, illustrated by M. Tregear in Song Ceramics, New York, 1982, p. 105, pl. 123.