Cf. a similar Qianlong vase in the National Palace Museum, Taipei, illustrated in Blue-and-White Ware of the Ch'ing Dynasty, Book II, pl. 5; one illustrated in Chinese Porcelain, The S.C. Ko Tianminlou Collection, no. 61; and another example included in the Exhibition of Ming and Ch'ing Porcelain from the Collection of the T.Y. Chao Family Foundation, Hong Kong Museum of Art, 1978, Catalogue no. 91.