This is a well-used sake cup. It's a vessel with a natural, aged quality that isn't just for show, but has a certain dignity. It's a perfect example of how the white clay has matured with use. If a teapot had this kind of atmosphere, the tea would surely taste delicious. The craftsmanship is quite meticulous, with a simple design that highlights the material, and a subtle groove at the foot of the base. I have no information on the maker, as I have no documentation and have only seen their work once. To be honest, I don't know the kiln site, whether it's Banko, Tokoname, or somewhere else. The atmosphere suggests it might be from the Meiji era, but I'm personally estimating it to be from the Taisho to early Showa periods. No damage. Diameter approximately 7.2 cm, height approximately 4.2 cm.