Mark with Japanese Mark: 羽州之住　清成 "Ushuu no ju | #458105

羽州之住　清成 "Ushuu no ju Kiyonari". This mark is from a tsuba and was made by Kiyonari, who worked as a sword engraver (soukenkinkou) in Dewa Province (present-day Yamagata Prefecture). Soukenkinkou is the Japanese name for metalworkers who design accessories for bladed weapons. A tsuba is a sword guard designed to protect the hand from contact with the blade. It also balances the weight of the sword.