Lot 5083. A bamboo root washer, Qing dynasty, 18th–19th century; 15 cm, 6 in. Estimate 20,000 — 30,000 HKD . Sold for 25,000 HKD (2,958 EUR) . Courtesy Sotheby's. the irregular heart-shaped vessel conforming with the natural form of the root, the exterior...

Lot 1119. A large bamboo root seal, 18th century; 3 ½ in. (8.8 cm.) high. Estimate USD 3,000 - USD 5,000 . Price realised USD 1,000 . © Christie's Image Ltd 2016. Of rhinoceros horn form, the seal is carved from a rhizome with a writhing chilong on one...

Lot 1118. A large bamboo root seal, 18th-19th century; 5 ½ in. (14 cm.) high. Estimate USD 5,000 - USD 7,000 . Price realised USD 4,000 . © Christie's Image Ltd 2016. The naturally formed seal is of irregular shape with protrusions, striations and nodules....

A lingzhi-shaped bamboo root washer, Qing dynasty, 18th century. Photo: Sotheby's the hollowed-out root carved in the form of a large lingzhi head of irregular contour joined to the stalk extending vertically down and flanked on side by a pair of spiral...