"Presented here is a fine example of a YOSHIRO tsuba. In Edo this name applied to all brass inlaid tsuba with floral designs. Yoshiro tsuba originate from the Heianjo-zogan school and are not of independent origin. The term Yoshiro is but part of the name of Koike Yoshiro Naomasa. Naomasa worked about the Keicho era (1596-1614).
The plate metal is iron of good quality and hardness like Heianjo-zogan work. The forging is very good. As seen here, the iron quality is good with the most admirable quality being the fine brass inlay making the contrast very elegant. An exemplary example of a YOSHIRO tsuba." (Long)