I was a student of Living National Treasure Jun Isezaki. This is a Bizen tokkuri (sake bottle) by Mr. Takashi Saito. It has been stored at home after purchase and is unused. It comes with a signed box, cloth, and a descriptive card. Size (approx.): Mouth diameter: 3.3 cm, Base diameter: 6.9 cm, Height: 13.2 cm. Thank you.