Lot 3692. An incised bamboo 'Mountain landscape' brushpot signed Zhiyan, Qing dynasty, 18th century; 12.5 cm., 4 7/8  in. Estimate 200,000 — 300,000 HKD. Lot sold 250,000  HKD. © Sotheby's

of cylindrical form and supporting on three short feet, deftly incised on the exterior with a wondrous mountain landscape scene detailed with craggy rockwork and arboured with tall bamboo trees next to an inscription signed by Zhiyan, the patina of a warm caramel-brown colour. 

Sotheby's. Important Chinese Works of Art, Hong Kong, 07 april 2015