A CALCIFIED WHITE JADE CYLINDRICAL VESSEL, CONG Shang/early Western Zhou DynastyA CALCIFIED WHITE JADE CYLINDRICAL VESSEL, CONGShang/early Western Zhou DynastyOf square section with a circular central hole and short collars to the top and bottom, the smooth sides slightly convex, the stone of chalky-white tone. 18.9cm (7 3/8in) long. 商/西周早期 玉琮Provenance: Roger Keverne Ltd., LondonA distinguished English private collectionPublished, Illustrated and Exhibited: Roger Keverne Ltd., Winter Exhibition, London, 2005, no.64來源：倫敦古董商Roger Keverne Ltd.英國顯赫私人收藏展覽著錄：Roger Keverne Ltd.，《冬季展覽》，倫敦，2005年，編號64Compare with a related cong, Shang or Western Zhou period, illustrated by J.Rawson, Chinese Jade From the Neolithic to the Qing, London, p.153, no.7:2.See a related large grey and mottled brown jade cong, formerly in the Florence and Herbert Irving collection, which was sold at Christie's New York, 25 September 2020, lot 1751.