A rare small yellow jade 'Bird' hat ornament, Tang-Yuan Dynasty, 10TH-14th century carved as a seated bird with closed wings; the underside with a circular section enclosing pierced holes for attachment, the stone of mottled brown tones, 3.2 cm long. Provenance: The Durwin Tang collection. Bonhams Hong Kong, 27/11/2018, lot 107. An important private collection, NSW.