Mark with Japanese mark: 津八左衛門壽甫 "Tsu yazaemon | #433232

津八左衛門壽甫 "Tsu yazaemon Toshiho". This mark comes from a "fuchi", a sword ferrule in the shape of a cap or ring, and was made by Toshiho. Toshiho worked as a "soukenkinkou" in the Nara line of the Tsu house. Soukenkinkou is the Japanese name for metalworkers who design accessories for bladed weapons.