Lot 355. A celadon jade disc, bi, Neolithic period, 16 cm, 6 1/4  in. Estimate 20,000 — 30,000 HKD. Photo: Sotheby's.

of circular form with a central aperture, the softly polished stone of a greenish-celadon colour variegated with areas of russet, creamy white and brown, wood stand.

Sotheby's. Chinese Art, Hong Kong, 01 juin 2017, 02:00 PM