The most famous area for cormorant fishing is the Nagaragawa in Gifu prefecture. An usho is a fisherman who uses twelve tethered cormorants at a time without entangling the ropes. The subject has always been popular among painters and literati.
The second tsuba accompanied by a Hozon certificate by the N.B.T.H.K.
Hamano Shozui (1696-1769) was the founder of the Hamano school in Edo and was a student of Nara Toshinaga.