A rare Chinese pale celadon jade hair ornament Tang dynasty 618-907 AD

A rare Chinese pale celadon jade hair ornament Tang dynasty 618-907 AD, in the form of a crouching dove with wings slightly spread, its head tilted back and its fantail with scrolls to the side, the stone flecked with russet markings, 5.8cm. Together with a modern hardwood stand. (2) Provenance: Mrs and Mrs J W Alsdorf, Chicago. Christie's, London, 1979. Exhibited: The Arts of the Tang Dynasty, Los Angeles County Museum, 1957, no.292. Cf. The Complete Collection of Treasures at the Palace Museum, Beijing, vol II, Jadeware, p.36, no. 33 for a closely related object.