Plaques of this type have been dated as early as Jin dynasty, like the present example, and as late as Tang dynasty. A similar plaque illustrated by B. Gyllensvärd in Chinese Gold & Silver in the Karl Kempe Collection, Stockholm, 1953, pp. 78-9, no. 20, is dated Six Dynasties period, where the author speculates that it might have been affixed to a cap. Another similar plaque, also described as a hat ornament, is illustrated in the Gisèle Croës exhibition catalogue, Gold and Silver: Treasures of Ancient China, 20-29 March 2007, p. 33, and dated Jin dynasty. Yet another similar plaque, on loan from C.T. Loo and dated to the Tang dynasty was included in the International Exhibition of Chinese Art, London, 1935-6, no. 705.