Possibly Qing Dynasty, very lovely piece in three separate pieces of jade. It has been suggested that bi disks are a representation of the sun or the wheel, reflecting the cyclic nature of life and death. During a war, the loser had to hand over the Jade Disks as a sign of submission to the conqueror, which shows the importance of the Jade stones and that they were not merely ornaments. Diameter 2 1/4 in.