Thank you for viewing. Black ceramic sake cup - Color: Black - Material: Ceramic Approximately 7.5cm x approximately 3.5cm There are original stains and irregularities on the inside. It appears to say "Keisui" on the bottom, but I'm not sure. This is a private sale/inspection, so there may be unnoticed defects, but the price reflects this. Please purchase with your understanding. Please refrain from purchasing if you are sensitive to such things.