A Chinese dark green and russet jade 'chilong' disc, bi, possibly Warring States (475-221 BC), the mottled dark green stone with reddish-brown inclusions carved to one side with a sinuous chilong with bifurcated tail, clutching a lingzhi mushroom in its mouth, the reverse polished and finished with a line around the central hole and inside the rim edge 5.5 cm diameter Provenance: Ex John Laycock collection Lot 43 Halls Fine Art 25th April 2018