An incense burner without a rim in the shape of a mouthpiece. Celadon glaze with a single-layer mouth is described in “Celadon Glazed Porcelain” as follows: “Ijueguchi, as described in the “Meinki Hyoroku,” is a celadon ware with a variety of colors, the mouth is usually large and rarely tall, the bottom is small with a tub bottom, and the foot is rarely large or stained, the body has two stripes each, rarely fitting together at the top and bottom, and there are both large and small incense burners. The same is true of the single-layered foot in both color and shape, the bottom is large, and the foot is always on a sloping leg or lower part of the body.
