AS25308 Katana:Tairyuu (remainder illegible) (Made by Tairyuusai Sokan) (NBTHK Hozon Token)

Ordering number:AS25308

Katana in Shirasaya (NBTHK Hozon Token)

Signature: Tairyuu (remainder illegible) (Made by Tairyuusai Sokan)
Genji 1Nen (May,1864)
泰龍斎宗寛造之
元治元年五月

Shinshinto: Jyo Saku: Musashi
We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.
This work is ranked as a Jyo Saku piece by Tairyuusai Sokan.
Habaki:Silver. Signle layer
Blade Length: 65.3 cm (25.71 in)
Curvature: 1.1 cm (0.43 in)
Mekugi Hole: 2
Width at Base (Motohaba): 3.2 cm (1.26 in)
Width at Tip: 2.5 cm (0.98 in)
Thickness of rim (Kasane): 0.68 cm (0.27in)
Sword Weight: 905 g
Era: Late Edo period
Shape: Wide blade and thick kasane, although it has been shortened. The kissaki is slightly long, and the signature area is rusted. Mitsumune. It is heavy.
Jigane: Ko-itame hada, well-forged and beautiful.
Hamon: A line-like ko-gunome-midare, with the hamon continuing irregularly into the kissaki.

Features: The tang is rusted and the signature is difficult to read, but “Tairyuusai Sokan” can be seen. The reverse side is dated May, Genji 1 (1864). The upper section has a well-defined hamon in ko-gunome-midare. The kissaki shows gunome-midare, returning in a komaru style.

Aoi Art’s Comment: Tairyuusai Sokan lived in Fukagawa Hakozaki, Edo, and is said to have been a student of Koyama Munetsugu. He produced wide, robust blades, and some works show utsuri. His early works were often in the style of Koyama Munetsugu, but later he developed a distinct style with ko-gunome-midare featuring aligned heads and utsuri throughout. His works resemble those of his master Munetsugu and are typically well-crafted, with few flaws. This piece has rust on the tang where the signature is, which is regrettable, but the upper part is in good condition and is recommended.

NBTHK Hozon Token Certificate
Aoi Art estimation paper: Oshigata