Carved in the form of mask with facial features, the forehead drilled with a circular aperture. Possibly Shang Dynasty period.
Provenance: Property from a private collection, San Francisco面上刻抽象五官，造型奇特，面部簡單，寥寥幾刀用陰刻線淺浮雕出眼鼻口部，頂部有一鑽孔，可作繫帶，整器鈣化，保存完好。 來源：三藩市私人藏家收藏
