Made by Torakazu Hirano Diameter: Approximately 6.0 cm Height: Approximately 5.0 cm Purchased at an exhibition in 1999 and stored unused since then. This is a very beautiful vessel with a rough, earthy texture, a deep, exquisite green color with a grayish-black hue, and a unique glaze that creates a distinctive flavor. I was told it was made as a sake cup, but I think it can also be used as a small bowl.