Mark with Japanese mark: 寶真齋　壽景 "Houshinsai | #433166

寶真齋　壽景 "Houshinsai Toshikage". This mark comes from a "tsuba", a sword guard designed to protect the hand from contact with the blade and an opposing sword. It was made by Toshikage, who worked as a "soukenkinkou" in the Nara line of the Tanakatouryuusai house. Soukenkinkou is the Japanese name for metalworkers who design accessories for bladed weapons.