Thank you for viewing. This is a Bizen-yaki teacup. There is a potter's mark, but I don't know the artist's name. Although it's not very noticeable due to the color, please be aware that there is a chip in one area. (See images 11 and 12) This item was obtained by my father, who was born and raised in Bizen City, from acquaintances, friends, and artists. He said that his collection included very old items and pieces by famous artists, but now it's uncertain which ones are, or if it's even true. Please view the images and make your own judgment and take responsibility for whether the item for sale is valuable. There is no accompanying box or artist's card. This item has been stored by a non-professional for a long time. Thank you for your understanding.