This is a Kohiki tea bowl. There is a mark on the foot, but it is difficult to see due to the glaze, so it is listed as being of unknown authorship. It is a copy of a Korean Joseon Dynasty piece and I don't think it's particularly old. The cracks in the glaze are starting to take on a nice color, and it looks like it will develop an even better color with use. There is no accompanying box. The size is approximately 13.2cm in height and 7.1cm in diameter. Shipping is included, and it will be sent via Mercari Yamato Transport. I have other items for sale, so please take a look. Thank you.