NEOLITHIC PERIOD, NORTHWEST CHINA, QIJIA CULTURE, 2ND MILLENIUM BC

A three-part disc, bi, similarly formed by three huang, dated Neolithic or Shang, 2000-1500 BC, from Western China, and now in the British Museum, is illustrated by J. Rawson, Chinese Jade from the Neolithic to the Qing, British Museum, 1995, p. 159, fig. 1.