Mark with Japanese mark: 退休庵　勝見 "Taikyuuan | #433390

退休庵　勝見 "Taikyuuan Katsumi". 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 Katsumi, who worked as a "soukenkinkou" in the Nara line of the Ito house. Soukenkinkou is the Japanese name for metalworkers who design accessories for bladed weapons.