Lot Essay
Compare the circular necklace closing device carved in a similar manner with a coiled bird excavated from the Western Zhou Tomb No. 9 at Zhuyuan'gou, Baoji, Shaanxi province, illustrated in The Complete Collection of Jades Unearthed in China - 14 - Shaanxi, Beijing, 2005, p. 54. See, also, the three in the Sonnenschein Collection illustrated by A. Salmony, Archaic Chinese Jades, The Art Institute of Chicago, 1952, pl. LXII (2,3, and 4).