Two courts, sixty years of war, and the most dramatic silhouettes in the sword’s history: broad blades, extended points, true ōdachi later cut down into the majestic katana collectors prize. The Sōshū manner was the style of the age.
Tanto in Shirasaya (NBTHK Hozon Token) (We divide 4 sections for each sword as Saijyo saku, Jyo-jyo saku Jyo saku and regular saku) This sword belongs to Jyo Jyo Saku ranking. The blade was polished. The weight of the sword 190 grams. Shape : Short Nakago, Mitsumume style Tanto. Wide and slightly thin with no Sori. There are engraving of Ken and dragon on the Omote side, Bo-Hi is on Ura side. Jigane : Ko Itame Hada Hadadachi with Jinie attach. There are Utsuri. Hamon : Nie Deki, Suguha Hamon with Ko Ashi. Boshi is round and Yakizume style. In the Ha, there are long Kinsuji. Special feature: The Echigo Yamamura Nobukuni school began at the end of the Nanbokucho period. It is said to continue until the end of the Muromachi period. It is said that Yamamura Masanobu was originally a student of Nobukuni the 2nd. But according to Dr.Kunzan's theory, Yamamura Masanobu may be a student of the Nobukuni the first. Please see the text on page 403 of the Kanto Hibisho Book. From Aoi Art: He was a student Nobukuni the first and moved to Echigo Yakamura province. Yamamura Masanobu is a head of the Yamamura school. NBTHK paper said simpmy "Yamamura". So we cannot say that it is Yamamura Masanobu. But it is similar to that. The blade is wide and Mitsumume Nanbokucho style Tanto. The Jigane has beautiful Hamon and Kinsuji. We strongly recommend this Tanto for you. There are some small rusts and nicked edge. If you want to ask us to polish this sword, additional polishing cost will be JPY50,000. NBTHK Hozon Token Aoi Art es
Offered by Aoi Art






The Nanbokuchō period (1333 to 1392)
Two courts, sixty years of war, and the most dramatic silhouettes in the sword’s history: broad blades, extended points, true ōdachi later cut down into the majestic katana collectors prize. The Sōshū manner was the style of the age.
Certifies a genuine blade worth preserving: a signature confirmed correct, or, if unsigned, an era, province, and school that the NBTHK can reliably identify.
The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.
NBTHK official siteIf you wish to return an item, please notify us within 3 days of receipt. After this period we cannot accept cancellations. Please ship the return to us within 5 business days. Cancellation is conditional on the item being kept in the same condition as at the time of sale, so please handle it with care.
¥400,000