A carved nephrite bi

The thinly sectioned disk centered with a circular opening around which a chilong crawls in high relief while the reverse is covered with a dense pattern of slightly raised circular bosses, the grey-green matrix strongly marked with russet patches (chip). 3 1/8in (8cm) diameter - Sold for $2,400  (Copyright © 2002-2008 Bonhams 1793 Ltd., Images and Text All Rights Reserved)

Bonhams. Fine Asian Works of Art, 23 Jun 2008. 220 San Bruno Avenue, San Francisco. www.bonhams.com