Product Name: Bizen-yaki Sake Cup (Guinomi) Material: Ceramic Size: Outer diameter approx. 6.5cm, height approx. 5cm My father, who loved pottery and tea, acquired these from acquaintances, friends, and artists. He used to say that his collection included some very old pieces and works by famous artists, but now I'm not sure which ones are, or even if it's true. There are no accompanying boxes or artist's pamphlets. There are potter's marks, but I don't know the artists' names. Please view the images and make your own judgment and take responsibility for whether the item has value. This item has been stored by a private individual for a long time. Thank you for your understanding. - Items will be packaged simply and recycled. - Returns are not accepted to prevent any trouble.