Mark with Japanese mark: 松盛齋 富久 "Shouseisai | #433334

松盛齋 富久 "Shouseisai Tomihisa". This mark comes from a "fuchi", a sword ferrule in the shape of a cap or ring, and was made by Tomihisa. Tomihisa worked as a "soukenkinkou" in the Nara line of the Tobari house. Soukenkinkou is the Japanese name for metalworkers who design accessories for bladed weapons.