This is a sake cup by ceramic artist Soji Tsurumi. From the "Black" series, created by blending soil with a high content of small stones and soil with a high metal content, then fired. ◉Note◉ There is a chip of about 3mm on the rim. (Please check the photos) It might look even better if you have it repaired with kintsugi. ◎Size Diameter: approx. 7cm, Height: approx. 3cm, Bottom: approx. 3cm ※Purchased around 2000 and stored at home. Please consider purchasing with the understanding that this is a long-term storage item.