Several vases of this form with crackled glazes are known, one from the Walters Collection, illustrated by S. Bushell, Oriental Ceramic Art, London, col. pl. LXXVII; one with imitation ruyao glaze included in the National Palace Museum, Taiwan, Special Exhibition of Ch'ing Dynasty Monochrome-glazed Porcelain, 1981, and illustrated in the Catalogue, no. 88; another illustrated by Liu Liang-Yu, Ch'ing Official and Popular Wares, p. 205; and a Yongzheng version with a ge-type glaze is illustrated in Sekai Toji Zenshu, vol. 12, Tokyo, 1976, fig. 45.