Mark with Japanese mark: 雲岩齋 "Ungansai" | #433559

雲岩齋 "Ungansai". 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 Joken, who worked as a "soukenkinkou" in the Nara line of the Mori house. Soukenkinkou is the Japanese name for metalworkers who design accessories for bladed weapons.