A shibayama inlaid ivory three case Inro signed Kanjoichi, 19th century, decorated in typical shibayama style inlay with a duck perched in a blossoming tree on one side, and its mate swimming beneath flowering plants and butterfly on the other, signed in a mother-of-pearl reserve Kanjoichi, with matching ojime and Manju netsuke decorated with quail and flowers, signed Kazuyuki 8.2 cm