AS25490 Katana: Hizen Koku Tadayoshi(NBTHK Tokubetsu Hozon Token)

Katana: Shirasaya with Koshirae (NBTHK Tokubetsu Hozon Token)
(Koshirae: NBTHK Hozon Tosogu)

Signature: Hizen Koku Tadayoshi 肥前国忠吉

We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.
This blade is ranked as Jyojyo Saku among works by Hizen no Kuni Tadayoshi.

Habaki:　Gold foiled single Habaki.
Blade Length: 2 shaku 2 sun 5 bu – 68.2 cm (26.85 in)
Curvature: approx. 0.9 cm (0.35 in)
Mekugi Holes: 2
Width at Base (Motohaba): 3.01 cm (1.18 in)
Width at Yokote (Sakihaba): 2.27 cm (0.89 in)
Thickness (Kasane): 0.58 cm (0.23 in)
Sword Weight: 705 g

Era: the early Edo period, the early 17th century
Shape: almost straight blade with about 2cm Michiokuri
Jigane: Well-forged and refined steel with visible grain.
Hamon: Nie base Suguha and Notare with Nijuba and Sunagashi.

Features: Shinto: Saijo O Wazamono
Hizen Koku Tadayoshi was a swordsmith lineage of Saga that lasted through 9 generations from the early Edo period to the Meiji period, and this particular piece is believed to be the work of the first generation based on its shape.
The 1st-generation Tadayoshi traveled to Kyoto to study under Umetada Myoju, later returning to Saga where he served as an official swordsmith for the Saga domain.
He is renowned as the foremost swordsmith of the Hizen school and is known for producing blades with excellent sharpness, earning the designation of Ōwazamono (great cutting ability).
This piece appears to be an early work of the first generation and features a hamon with variations reminiscent of koto (old swords), making it an enjoyable blade.

　
Koshirae (with NBTHK Hozon Tosogu)
Tsuba: iron base with cloud patterns
Fuchikashira and Kojiri: silver base carved with a design of waves
Menuki: Pheasant motif

NBTHK Tokubetsu Hozon Certificate
NBTHK Hozon Certificate for Koshirae
Aoi Art estimation paper with Whole Oshigata

Please note: the price does not include the shipping fees.