A very similar archaistic ewer is illustrated by J.A. Pope, et al., The Freer Chinese Bronzes, Washington, 1967, vol. I, pl. 105. The design of both this ewer and the present ewer are based on Warring States prototypes, such as the ewer with very similar openwork handle and spout illustrated in Zhongguo meishu quanji; Diaosu bian; Yuanshi shehui zi Zhangou diaosu (The Great Treasury of Chinese Fine Arts; Sculpture; Sculpture from Primitive Society to the Warring States), Beijing, 1988, vol. 1, p.119, no. 149; and another with similar legs surmounted by birds with spread wings illustrated by C.F. Kelley and Ch'en Meng-Chia, Chinese Bronzes from the Buckingham Collection, The Art Institute of Chicago, 1946, pl. LXII.