Lot 210. A large jade ceremonial blade, zhang, Neolithic period - Shang dynasty. Length 31.8 cm, 12½ in. Estimate: 10,000 - 15,000 GBP. Lot sold 106,250 GBP. Photo Sotheby's.

thinly carved with long curved sides tapering to squared edges, with a drilled hole between a pair of protruding flanges to either side of the tang, the polished stone of a mottled dark-spinach green tone.