Cf. A yu of similar size and form in the Victoria and Albert Museum illustrated by Watson, Ancient Chinese Bronzes, pl.16; another by Pope et al, The Freer Chinese Bronzes, Catalogue, vol.1, pl.54 which also has animal head terminals but a differing finial; and another by Kelley and Ch'en, Chinese Bronzes from the Buckingham Collection, Catalogue, pl. XXVII again with animal head terminals and a similar finial; another by Lefebvre d'Argeneé, The Hans Popper Collection of Oriental Art, pl.6