Mark with Japanese mark: 元治甲子歳初春　福田寿政 "Genji | #433183

元治甲子歳初春　福田寿政 "Genji kinoene toshi shoshun Fukuda Toshimasa". 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 Toshimasa, 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.