This is an iron sukashi katana tsuba. It has been attributed to the Owari school by the NTHK. This work shows several Owari traits. The design is symmetrically balanced and it is kaku-mimi ko-niku. There are prominent tekkotsu in the mimi and the seppa dai is dished. The paper states that it was made in the early Edo period. So this dates to around 1600-1650. The theme is kiku and hishi (chrysanthemum and diamond). There is a gold over copper sekigane in the kogai-hitsu. This is accompanied by an NTHK paper and a paulownia wood storage box. A nice and representative example of Owari.