Tôsen sukashi iron tsuba with grass design, late Edo period

This Japanese tsuba, or sword guard, is crafted from iron and features an elegant openwork design, known as Tôsen sukashi, depicting grasses. The piece is of the marugata (circular) shape and features a maru mimi (rounded rim), showcasing the refined craftsmanship associated with the late Edo period.

It measures 7.9 cm in diameter. The surface displays minor traces of age, characteristic of its historical nature. The sword guard bears the signature 'Tosa koku-jû Myoshin ki Toshio' engraved on the surface near the central nakago-ana (blade opening). This item is accompanied by a traditional wooden storage box, referred to as a Kiribako, which provides protection and preservation for the iron guard. The minimalist yet intricate nature of the openwork, combined with the structural integrity of the circular iron form, makes this a classic example of traditional Japanese metalworking techniques applied to samurai sword furniture.