Carved with white jade from the area of Qijia culture, this jade bi is seen a rectangular flavored round shape with a unidirectional hole. The similar item is seen as the one Huang Liang Liang Tai, Wuwei City, Gansu Province. Antiquity evidence includes additive crystal, diffusive marking, and differential weathering.
- quality of jade: 9
- rareness: 9
- historical and cultural significance: 9
- workmanship: 9
- condition: 10