This is a well-known Ido sake cup by Mr. Togo Kobayashi, famous for his revival of the Joseon Dynasty pottery style. The surface texture (kairagi) is somewhat subdued, making it a calm and easy-to-use cup. There is a feeling that it will develop a gorgeous biwa color (a reddish-brown hue) with continued use. It comes with a wooden box. Mr. Togo's calligraphy on the box is also superb. The size is approximately 9 cm in diameter and 5 cm in height, making it an easy-to-drink size. There is a small glaze chip (see photo 9). Please confirm. The frequency of use is low, and I believe it is in relatively good condition, but please understand that it is a used item that has been stored at home for a long time, and consider accordingly.