LATE SPRING AUTUMN PERIOD - EARLY WARRING STATES PERIOD, CIRCA 570 - 400 BC

It is rare to find a bi disc of this size carved with a pattern of abstract dragons. A smaller bi disc (12.5 cm.) carved with a similar pattern is illustrated in Jades of Spring and Autumn Period, Taipei, 2010, no. 28 (fig. 1); and another (15 cm.) with less distinctive features of dragons, was excavated from the Tomb of Marqui Yi of Zeng, Suizhou, Hubei Province, and illustrated in Zhongguo kaogu wenwu zhi mei, vol. 5, Beijing, p. 144 (upper left).