AS25307 Katana: Bishu Ju Kuninaga Saku(NBTHK Hozon Token)(Consignment Sale)

Katana in Shirasaya with Koshirae (NBTHK Hozon Token)

Signature: Bishu Ju Kuninaga Saku 備州住国長作

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 Bishu Ju Kuninaga.

Blade Length: 73.6 cm (28.98 in)
Curvature: 1.8 cm (0.71 in)
Mekugi Hole: 1
Width at Base (Motohaba): 3.3 cm (1.30 in)
Width at Tip (Sakihaba): 2.10 cm (0.83 in)
Thickness of rim (Kasane): 0.74 cm (0.29 in)
Sword Weight: 840 g

Era: the mid-Edo period around Kyoho era (1716–1736)
Shape: slightly wide and thick blade with a little long Sori.
Jigane: Itame hada with intense grain patterns.
Hamon: Nie-deki　Suguha and Gunome with Ashi and Yo.

Features: Bishu Ju Kuinaga was a swordsmith in Kyoho ear. The intense Jigane with Chikei is reminiscent of Norinaga and represents a remarkably well-made piece.

Koshirae:
Tsuba: Round-shaped iron tsuba with openwork carving of a dragon. inscription: Echizen Ju Kinai Saku
Fuchikashira: Iron base with silver inlaid arabesque.
Menuki: a picture of a dragon.

NBTHK Hozon Certificate
Aoi Art Estimation Paper: Whole Oshigata