Mark with Japanese mark: 退休庵 勝見 "Taikyuuan | #433394

退休庵 勝見 "Taikyuuan Katsumi". This mark comes from a "fuchi", a sword ferrule in the shape of a cap or ring, and was made by Katsumi. Katsumi 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.