This is an open-minded inkwell. (The body is inscribed with "kaimei tsubo") I fell in love with it and bought it at an antique shop in Kichijoji some time ago. I remember it was quite expensive at the time. It's in a clean condition because it hasn't actually been used, but it's an old item, so please judge from the photos. According to old documents, it's an inkwell and pen washer. It's about 6.6cm wide It's about 5.2cm tall.