Mark with Japanese mark: 長濱良延作 "Nagahama | #433156

長濱良延作 "Nagahama Yoshinobu saku". This mark comes from a "fuchi", a sword ferrule in the shape of a cap or ring, and was made by Yoshinobu. Yoshinobu worked as a "soukenkinkou" in the Nara line of the Kawano house. Soukenkinkou is the Japanese name for metalworkers who design accessories for bladed weapons.