AS25083 Wakizashi：Hizen Kuni Mutsu no Kami Tadayoshi (NBTHK Tokubetsu Hozon Token)

Wakizashi: Wakizashi in Shirasaya (NBTHK Tokubetsu Hozon Token)

Signature: Hizen Kuni Mutsu no Kami Tadayoshi
肥前国陸奥守忠吉

Shinto: Saijo O Wazamono: Jyojyo Saku: Hizen
We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.
This piece is ranked as Jyojyo Saku among works by Hizen Kuni Mutsu no Kami Tadayoshi.
Habaki: Double gold-covered
Blade Length: 51.6 cm (20.31 in)
Curvature: 1.4 cm (0.55 in)
Mekugi Hole: 1
Width at Base (Motohaba): 3.06 cm (1.20 in)
Width at Tip: 2.17 cm (0.85 in)
Thickness of rim (Kasane): 0.65 cm (0.26 in)
Sword Weight: 555 g
Era: Edo period, around Manji era (1658)
Shape: Wide blade with slightly thick kasane, deep curvature, and a slightly extended kissaki.
Jigane: Well-forged ko-itame hada, forming a fine and high-quality Hizen steel.
Hamon: Deep nioiguchi with prominent gunome-midare.
Kinsuji appears actively.
An excellently made piece.

Features:　Hizen Kuni Mutsu no Kami Tadayoshi was the son and heir of the second-generation Tadayoshi (Tadahiro).
He is known as the third-generation Tadayoshi, also called Shinsaburo.
He received the title Mutsu no Kami in Manji 3 (1660), and passed away on the 2nd day of the first month in Jokyo 3 (1686).
Kinsuji and sunagashi appear on both sides of the blade, and the deep nioiguchi enhances the beauty of the hamon.
He is known for having the finest jigane among Hizen swords.
Although most of his works are in suguha (straight hamon), this piece features a midareba (irregular hamon) with variety and excellent workmanship.
Highly recommended.

Tokubetsu Hozon Token
Aoi Art estimation paper: Whole Oshigata