This painted and incised peony motif is found most commonly on these green-glazed zun-shaped vessels. Similar examples are in the Fogg Art Museum, illustrated by Y. Mino in the Catalogue of the exhibition, Freedom of Clay and Brush through Seven Centuries in Northern China, Cleveland Museum of Art, 5 August - 6 September 1981, pp. 214-215, pl. 95; in the Tokyo National Museum, illustrated in the Catalogue, Chinese Ceramics I, Tokyo, 1988, p. 141, fig. 565; and in the Baur Collection, illustrated by J. Ayers in the Catalogue, Geneva, 1968, vol. 1, no. A78.