A green and russet jade 'chilong' ring, and a brown jade cylindrical cong, Ming Dynasty. Photo: Bonhams.

The ring carved with two chilong clambering around the exterior, one with its head cleverly carved from fine green stone, 6cm (2 3/8in) wide; the cong carved from greyish-brown streaked stone with four square layers flanked by a circular layer at each end, 4.2cm (1 5/8in) wide. (2). Estimate £2,000 - 3,000 (€2,400 - 3,700/)

Bonhams. FINE CHINESE ART, London, New Bond Street, 15 May 2014 -http://www.bonhams.com/