AS25623 Katana:: Bizen Koku Ju Osafune Sukesada (Not Guaranteed) Dated: August, 1513 (Eisho 10)(NBTHK Tokubetsu Kicho Token)(Koshirae: NBTHK Hozon Tosogu)

Ordering number:AS25623

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

Signature: Bizen Koku Ju Osafune Sukesada (Not Guaranteed)
Dated: August, 1513 (Eisho 10)
備前国住長◻︎祐定(無保証)
永正十年八月吉日

We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.
This sword is ranked as Jyo Saku for works byOsafune Sukesada (Not Guaranteed).
Habaki: Single-layered gold-covered
Blade Length: 69.3 cm (27.28 in)
Curvature: 2.2 cm (0.87 in)
Mekugi Hole: 3
Width at Base (Motohaba): 2.84 cm (1.12 in)
Width at Tip (Sakihaba): 1.72 cm (0.68 in)
Thickness of Rim (Kasane): 0.71 cm (0.28 in)
Sword Weight: 600 g
Era: Late Muromachi period
Shape: Slightly wide blade with bo-hi carved on both sides, long kissaki, and deep curvature.
Jigane: Well-forged ko-itame hada with visible utsuri. The boshi shows midare-komi.
Hamon: Ko-nie deki in gunome-midare pattern. Slight hardness is felt overall, and the irregularities within the boshi feel slightly inconsistent.

Features: Although the workmanship and signature appear well-executed, it is difficult to consider this sword as genuine.
Nevertheless, it is a finely made piece.
The koshirae comes with a NBTHK Hozon Tosogu certificate.

Koshirae: Tachi-style mountings
Tsuba: Iron tsuba with “shigure-mon” (autumn drizzle pattern) design.
Fittings: Ishime-ji (stone surface pattern) metalwork throughout.
Saya (Scabbard): Gold lacquered, wrinkled leather-covered saya with inro-style carved design.

NBTHK Tokubetsu Kicho Token
Koshirae: NBTHK Hozon Tosogu
Aoi Art estimation paper: Whole Oshigata

Auction Starting Price:700,000JPY