AS25131 Katana：Mumei (Attributed to Kanenaga) 無銘(兼長) (38th NBTHK Juyo Token)

Katana in Shirasaya with Koshirae (38th NBTHK Juyo Token)

Signature: Mumei (Attributed to Kanenaga)
無銘(兼長)

Chūko-to: Ōwazamono: Jyo Saku
We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.
This work is ranked as Saijyo Saku (the highest grade) among Mumei (Kanenaga) works.
Habaki: Double-layered gold-covered
Blade Length: 67.4 cm (26.54 in)
Curvature: 1.2 cm (0.47 in)
Mekugi Hole: 2
Width at Base (Motohaba): 3.02 cm (1.19 in)
Width at Yokote (Sakihaba): 2.01 cm (0.79 in)
Thickness of rim (Kasane): 0.63 cm (0.25 in)
Sword Weight: 830 grams
Era: Nanbokucho period
Shape: A wide blade with high shinogi and relatively shallow curvature.
Jigane: Finely forged ko-itame hada with ji-nie and faint utsuri appearing.
Hamon: Nie-based gunome-midare, appearing with striking intensity.
It is in the Soshu-den style with well-applied nie and vibrant gunome-midare.
The bōshi is midarekomi.

Features: This sword is published in the Ōsaka Meitō Zufu (Osaka Famous Sword Catalog).
It belongs to the Nagayoshi school lineage, is classified as Ōwazamono and Jyo Saku, and dates to the Jōji era of the Nanbokucho period.
The blade exhibits gunome-midare with intense sunagashi and kinsuji appearing in the ha.
The kinsuji in particular is long and dynamic, making this a truly spectacular piece.
The hamon is bright and clear, and the activity within the blade is extraordinarily rare.
This sword is highly recommended.
The hamon on the kissaki is also intense, fully expressing the characteristics of the Nanbokucho period.

Koshirae: Tachi-style mounting
Tsuba: Silver base, Aoi-shaped tsuba
Menuki: Silver base, design of dragon
Fuchi-Kashira: Silver base with ishime (stone-textured) surface.

38th NBTHK Juyo Token
Aoi Art estimation paper: Whole Oshigata