A Shinto katana
By Mutsu Miyoshi Nagamichi Toshiro, dated Kanbun 10 (1670)
The blade of shinogi-zukuri, of shallow zori, medium notare-ha of nie and nioi with sunagashi, itame-hada, the ubu-nakago with kiri-yasuri and one mekugi-ana, signed and dated Mutsu no daijo Miyoshi Nagamichi, Toshiro, Kanbun ju kanoe-inu nen ni gatsuhi (February 1670), in shirasaya; with koshirae: black lacquered ribbed saya; the fittings of shakudo, the tsuba of mokko form, carved and inlaid with the Omi Hakkei (the Eight Views of Lake Biwa); the fuchi-gashira similarly decorated with temple scenes; the associated kurikata inlaid with a straw hat and kiku bloom; and the kojiri of copper, in the form of a kiku bloom, unsigned.
The blade 69.9cm (27½in) long. (4).
FOOTNOTES
刀　銘陸奥大掾三善長道　藤四郎　附　蝋色塗地沢潟文蒔絵畝刻鞘打刀拵　寛文10年（1670年）

With NBTHK Tokubetsu Hozon Token certificate for the blade and NBTHK Hozon Tosogu certificate for the koshirae.