This is an old Karatsu black-glazed soba noodle-style tokkuri (sake bottle). It was used as an "ozuke tokkuri" (a bottle left for guests) during tea ceremonies when the host was absent. Against a background of deep black glaze, white glaze is freely and boldly applied, a design known as "somenté" (soba noodle style), which is very popular. Of course, it would also be wonderful repurposed as a vase or flower container. For those who like it, how about it?