A NEOLITHIC MOTTLED GRAY-GREEN JADE CONG Liangzhu Culture, circa 3000-2500 B.C.A NEOLITHIC MOTTLED GRAY-GREEN JADE CONGLiangzhu Culture, circa 3000-2500 B.C.The slightly tapered square tube with a thick collar on each end, section into four tiers of matching panels angled over the four corners, each corner finely carved and engraved with a stylized 'mask,' separated by a plain vertical band on each side, the interior drilled in cylindrical form, the stone of moss green color mottled in dark grey throughout. 4 1/4in (10.7cm) high新石器時期 良渚文化 玉琮Compare the Liangzhu jade cong with five tiers of corner-panels of stylized 'masks,' excavated from tomb no. 1 at the Shedunmiao site, Haining, Zhejiang province and now in the collection of the Haining Museum, illustrated by Gu (ed.) in Zhongguo chutu yuqi quanji (Complete Collection of Jades Unearthed in China), Vol. 8, Zhejiang, Beijing, 2005, p. 32.Compare also the Liangzhu jade cong carved with five tiers of stylized 'masks,' unearthed at Meijiali, Zhejiang province, illustrated in the catalogue of the special exhibition at the Arthur M. Sackler Museum of Art and Archaeology at Beijing University by Qin and Fang (eds.), Quanli yu xinyang: Liangzhu yizhi qun kaogu tezhan (Power in Things: New Perspectives on Liangzhu), Beijing, 2015, pp. 211-213, no. II-2-1, with description on p. 385.