Thank you for viewing. This is a sake cup with a very attractive deep iron glaze and the kiln changes (yohen) visible on the inside. There are two types of stamps on the bottom, suggesting it is a work by an artist. (Artist details unknown) No noticeable scratches or chips (color unevenness and kiln marks seen on the surface are from the time of purchase) This cup makes alcohol look beautiful and is perfect for Japanese sake, shochu, plum wine, etc. Please consider it.