L:6.5cmA White Jade Bi Disc Pendant, Qianlongthe oval disc finely carved with archaistic 'c' and 's' scrolls on the front, and worked in high and pierced relief with a sinuous pair of bifid tailed qilong dragons, who crawl up the plain back of the disc so that their heads and claws protrude at each end, the white stone well finished with soft polish, wood box