An Archaic Jade Cong western zhou dynasty (1047 b.c. - 772 b.c.) or earlier of a green stone with large areas of brown skins, the rectangular body having circular collars on both ends. Height 6 1/4 inches. Estimate $20,000-30,000 Property from a Prominent Washington D.C. Collection Provenance: Mackensie Walker Collection, Washington D.C. Fine Chinese Ceramics and Works of Art, Sotheby's New York, December 4, 1984, sale 5251, lot 75 Having an old restoration to a lower corner.