A pair of gold dragon-head fittings of this type without loose rings, excavated between 1974-78 from the 4th century BC Warring States tomb of King Cuo, at Lingshou, the ancient capital of the State of Zhongshan in present-day Pingshan county, in Hebei province, is illustrated by Han Wei and Christian Deydier, Ancient Chinese Gold, Paris, 2001, p. 53, no. 87, where they are described as chariot fittings. The eyes of the dragons are in silver which would have surrounded pupils inlaid in stones or glass, similar to the glass inlaid pupils of the present dragon head. The sides and front of the mouth of the excavated fittings are hollow indicating that they may have suspended a ring of some kind. See, also, the pair of gold and silver-inlaid bronze fittings of this type with dragon-head terminals dated 4th-3rd century BC illustrated by C. Delacour, De bronzes, d'or et d'argent: Arts somptuaires de la Chine, Musée Guimet, Paris, 2001, pp. 145-7. A loop at the front of the jaws is formed by the curved body of a raptor.
A Technical Examination Report is available upon request.