Mark with Japanese mark: 菊川南甫 "Kikukawa Nanpo" | #433275

菊川南甫 "Kikukawa Nanpo". This mark comes from a "fuchi", a sword ferrule in the shape of a cap or ring, and was made by Nanpo. Nanpo worked as a "soukenkinkou" in the Nara line of the Kikukawa house. Soukenkinkou is the Japanese name for metalworkers who design accessories for bladed weapons.