A pair of archaic green jade bird pendants, Western Zhou, 11/9th Century BC. 11 cm long. Together with an unusual archaic jade openwork pendant, partially calcified, 17.5 cm. Provenance. Joseph Neuman, 1969. Reference. Jessica Rawson, Chinese Jade from the Neolithic to the Qing, British Museum, 1995, cat no 12:29, pp 227