Mark with Japanese mark: 武陽住　仲矩 "Buyou ju | #433192

武陽住　仲矩 "Buyou ju Nakanori". 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 Nakanori, who 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.