Lot 424. An archaic green and russet jade disc, bi, Warring States Period-Han Dynasty; 12.5cm (4 6/8in) diam. Sold for £ 6,120 (€ 7,108). © Bonhams

Each side carved in low relief with 'comma' spirals within an hexagonal grid pattern between plain inner and outer borders, the translucent green stone with russet inclusions and veins.

Note: Compare with a similar disc, bi, of larger size (17.2cm), Warring States period, illustrated by Yang Boda, Chinese Archaic Jades from the Simon Kwan Collection, Hong Kong, 1994, no.197.

See a similar greyish-green jade bi disc, Warring States period/Han dynasty, which was sold at Christie's New York, 19-20 September 2013, lot 1730.