Japanese Sake Cup by Seigan Yamane

Japanese Sake cup - Hagi ware with box - Beautiful blue glaze work of Seigan Yamane. The cup has the maker's signature mark stamped on the bottom. Height: 2.0" (5 cm). Diameter: aprox 2.5" (6.5 cm). Condition: The cup has a chip in the edge cover by the glaze, apparently made during the manufacturing process (please, see photos).