Neolithic period, circa 3000-2000 BC, or later. A carved ritual cong of rounded triangular form with central waisted vertical piercing and rebated edges, with two shallow-relief human-like visages, one with widely separated ears, in a mottled buff-orange jade. Cf. Ross, Jessica, Mysteries of Ancient China, British Museum, 1996, item 16 for similar examples. 900 grams, 13.5cm (5 1/4"). Property of a Brussels gentleman; peviously in an old french collection, circa 1950. [A video of this item is available to view on TimeLine Auctions website.]Fine condition; light abrasion at corners.