Four various jade bi discs, the first of pale celadon colour, carved with dragon and phoenix ends, the second of celadon and grey colour, carved as a coiled dragon, the third of semi-opaque celadon and russet colour, carved with two dragons coiled around a bi disc, the fourth of brown celadon colour, carved in archaistic style with a pierced dragon, the largest, diameter 7.3 cm. Provenance: from the Leo Walker Tattersfield collection of Chinese Jades