Edo (1615-1868) or Meiji era (1868-1912), probably mid-late 19th centuryPainted around the front with blue Korin-style waves on a white ground, the rest of the bowl covered with a lustrous black glaze, inscribed Kenzan; with a lacquered wooden storage box. 8.2cm x 11cm (3?in x 4 3/8in). (2).