Stone Pipe Bowl

Multiple Views of Stone Pipe Bowl. The material is likely steatite. Three faint converging lines on the bottom resemble a bird's foot print.石制烟斗碗多角度视图。其材质大概率为块滑石（steatite）。器底带有三条模糊的汇聚线条，外形酷似鸟类足迹。