本器青玉雕琢, 以回首臥鷹作為紋飾, 淺浮雕刀法, 設計簡潔, 刀工流暢,古玉跡象為擴散暈沁色, 冰裂紋及鈣化. Carved with pale tone jade, the object is a belt button decorated with an eagle facing backward. Low relief carving with simple and nice lines. Antiquity evidences are diffusive markings, cleaving vein and calcification. For any questions, please write to Prof. Chen.