Collected in Yangzhou Han Guangling Tomb Museum
Diameter 12.3cm, aperture 4.1cm, 0.5 cm in thickness
Unearthed in II tomb Shenju Mountain Gaoyou, Yanzhou in 1980
Plain without patterns; in the middle, a crack has been repaired, while a corner is missing; it seems like jade with yellow color and several ice cracks.
