The shape and thin casting of this ornament, as well as the types of hooks on the reverse, are similar to other circular ornaments of the Dian Culture. See, lots 894 and 895, and an ornament illustrated by J.M. White and E.C. Bunker, Adornment for Eternity: Status and Rank in Chinese Ornament, Denver Art Museum, 1994, p. 114, pls. 33 and 34, where the back of a circular ornament is illustrated showing this particular type of hook.