石家河文化 Certified Chinese Nephrite jade pitcher, Shijiahe culture (2500-2000 BC), Hubei. Width: 9 inches = 235 mm. Diameter: 5.52 inches = 135 mm. Height from the bottom to the top of the lid: 6 inches = 160 mm. Weight of pitcher: 4 lb. 12 oz. = 2170 g. Weight of Lid: 12 oz. = 320 g. Total weight, including lid: 5.5 lb. = 2500 g. Provenance: from the estate sale in Washington State, USA. Condition: normal age wear more at the bottom and on the side walls, which is another proof of authenticity, no defects. Authenticity report by Dr. Ming Chieh Chen, Certified Appraiser, Palm Beach Appraisers Association:Made of green tone nephrite jade pitcher vase was used possibly for ritual ceremonies.Based on the degree of jade antiquity, motif and carving style, age of object may be from the Shijiahe culture (2500-2000 BC) of late Neolithic cultures, centered around Yangtze river region in Hubei, China. Estimate Value for object is :$120,000-150,000. References: Shijiahe culture. The Shijiahe culture (Chinese: ; pinyin: Shjih Wnhu) (2500-2000 BC) was a late Neolithic culture centered around the middle Yangtze River region in Hubei, China. It succeeded the Qujialing culture in the same region and inherited its unique artifact of painted spindle whorls. Pottery figurines and distinct jade worked with advanced techniques were also common to the culture. The remains of copper ore and artifacts were discovered in one Shijiahe settlement.The type site was discovered at Tianmen County, Hubei, China. The upper layer of the type site belonged to the Qujialing culture. The site at Shijiahe covered an area of around 1,200,000 m. The settlement was surrounded by a moat and rammed earth wall. The type site was likely a regional center. Shijiahe is one of the largest towns excavated so far, almost a perfect square, one kilometer on each side. This was a period in which villages and towns expanded symmetrically in oval, square, rectangle and trapezoid shapes.[1] Condition: normal age wear more at the bottom and on the side walls, which is another proof of authenticity, no defects; Low Estimate: 50000; High Estimate: 150000; Original: Yes; Terms of sales: All sales are final: no refunds, no returns.