Lot 5004. A jade 'toothed animal mask' ornament and a green jade 'face' pendant, Neolithic period, Hongshan culture (c. 3800-2700 BC); 8.4 cm, 3 1/4  in. Estimate 20,000 — 30,000 HKDSold for 47,500 HKD (5,177 EUR). Courtesy Sotheby's.

of generous proportions, the thick blade tapering at one end and outlined with rounded edges, one side with a concave groove marked with concentric rings, the lustrous stone of a pale greyish-beige colour accentuated with brown and white inclusions.

Exhibited: Angus Forsyth and Brian McElney, Jades from China, The Museum of East Asian Art, Bath, 1994, cat. no. 55.

Literature: Roger Keverne, ed., Jade, London, 1991, p. 64, fig. 26.

Note: In addition to its remarkable thickness, suggesting that it would have been able to withstand forceful use, the current honey-coloured chisel is rare in that it bears a half perforation across one side. The groove is wide angled and marked with concentric rings, and it is possible that the current chisel was once married to a separate parallel 'sister' counterpart with a corresponding groove. 

Sotheby's. EYE/EAST, Hong Kong, 22 May 2020