By Koami Nagataka (Choko), Edo period (1615-1868), early 19th centuryLacquered in black with swirling water and inlaid on either side with a swimming carp in porcelain, one unglazed, the other glazed blue, the interior of nashiji; signed Koami Nagataka with a kao. 9.8cm (3 7/8in) high.