An interesting and important shinshinto katana made by an excellent swordsmith Toshikazu who studied under Tsunatoshi one of the top makers of the era.The blade was order made for Yamamoto Morinobu from Musashi present day Tokyo. Cutting test carried out by Yamada Asaemon. Blade has a few small areas of coarse hada and a couple of tiny pitts ,the nakago shows some signs of old corrosion but the mei & cutting test is still legible .The koshirae has attractive cherry tree bark type lacquer , Tsuka is bound in a Jabara Ito,Fuchi Kashira and Menuki are dragon motif.
Translation of NBTHK Tokubetsu Hozon Certificate
Myō-Hachiman ‒ Saijō-shin Yano Toshikazu ‒ Yamamoto Morinobu kimi no tame ni tsukuru (妙八幡 ⻄条臣矢野俊一・為山本守信君作) ‒ “Myō- Hachiman ‒ Made by Yano Toshikazu, retainer of Saijō, for Yamamoto Morinobu.” (Musashi province, 武蔵)
Kaei gonen mizunoto-ne nigatsu kichijitsu ‒ Taitai dotan-barai Yamada Asaemon (嘉永五年壬子二月吉日・太々土壇拂山田朝右エ門) ‒ “On a lucky day in the second month of Kaei five (1852), year of the rat. Yamada Asaʼemon [cut with this blade through a body] at the height of the armpits and into the earthen mound below.”
nagasa ~ 70.7 cm
KANTEI-SHO (鑑定書) – APPRAISAL
According to the result of the shinsa committee of our society, we judge this work as authentic and rank it as Tokubetsu-Hozon Tōken.
May 30, 2017
[Foundation] Nihon Bijutsu Tōken Hozon Kyōkai, NBTHK (日本美術刀劍保存協會)
TOSHIKAZU (俊一), Kaei (嘉永, 1848-1854), Musashi – “Saijō Toshikazu saku” (西条俊一作), “Yano Toshikazu kore o seizō” (矢野俊一精造之, “carefully made by Yano Toshikazu”), “Chōunsai Fujiwara Toshikazu saku” (長運斎藤原俊一作), “Chōjusai Toshikazu kore o seitan” (長寿斎俊一精鍛之, “carefully forged by Chōjusai Toshikazu”), real name Yano Shun ́ichi (矢野俊一), he was a smith of Iyo ́s Saijō fief (西条藩) which was ruled by the Matsudaira family (松平), but he worked from Edo ́s Yotsuya (四谷), he studied under the 1st gen Tsunatoshi (綱俊) from whom he also got the gō Chōunsai (長運斎), but he also used the pseudonym Chōjusai (長寿斎), it is assumed that he was related to the 1st gen. Tsunatoshi, he made mostly blades with a magnificent sugata with a wide mihaba and an ō- kissaki, the jigane is a dense ko-mokume with fine ji-nie, the hamon is a chōji-midare or suguha in nioi-deki, but can also be in ko- nie-deki, we know date signatures from the fifth year of Kaei (1852) to the third year of Keiō (慶応, 1867), chūjō-saku