Food serving vessel (Dou)

Food serving vessel (Dou) by Unknown. The object is a gray, ceramic vessel with a wide bowl and a narrow stem base. The bowl has horizontal ridges around it. The lid is domed with a short, narrow stem on top. The lid and bowl meet at a recessed line. The base of the stem is wider than the top. The object is symmetrical. The object is shown in grayscale. The object casts a shadow to the left. The background is white.