Mark with Japanese mark: 正則 "Masanori" | #433218

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