It is regarded as the sword guard made by Matashichi (1613〜99), the first of the Hayashi school, based on the style of the work. Matashichi’s father come from Owari province and served Kato Kiyomasa as a gun smithery. It is believed that Matashichi also succeeded as a gun smithery, after that, he became a swordsmith and served the Hosokawa family. The handguards of Matashichi feature the beauty in the color of iron-blue, elaborate open work and inlaying texture pattern.
This open work of tsuba depicts the motif of paulownia flowers with parallel lines inside the iron circle. It is elegant piece of work made of shiny rusty black iron.