Lot 367. A large calcified jade axe blade, yue, and a jade disc, bi ; the disc: possibly Neolithic period, the blade later. Estimate 5,000 — 10,000 HKD. Photo: Sotheby's

the axe blade with gently beveled edges and an aperture to the top; the disc of circular form, pierced through the center with an aperture, wood stand - 16.5 and 21.8 cm, 6 1/2  and 8 1/2  in. 

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