Katana:Bizen no Kuni Jyu Osafune Kiyomitsu Gorozaemon no Jo Sukesada saku(NBTHK Tokubetsu Hozon Token)

Ordering number:23875

Katana in Shirasaya with Koshirae (NBTHK Tokubetsu Hozon Token)

Signature: Bizen no Kuni Jyu Osafune Kiyomitsu Gorozaemon no Jo Sukesada saku 備前国住長船清光五郎左衛門尉祐定作
Shu Genbei Tame Judai kore saku. 主源兵衛為重代之作
in August, the 10th year of Eiroku.永禄十年八月吉日

We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku, and Regular Saku. This piece is ranked as Jyojyo Saku for Bizen no Kuni Jyu Osafune Kiyomitsu and Gorozaemon no Jo Sukesada.

Habaki: Gold foiled double Habaki.
Blade Length: 63.9 cm (25.16 inches).
Curvature: 2.1 cm (0.83 inches).
Mekugi Hole: 1.
Width at Base: 3.17 cm (1.25 inches).
Width at the Tip: 2.27 cm (0.89 inches).
Thickness of Rim: 0.71 cm (0.28 inches).
Sword Weight: 780 grams.
Dated: August, Eiroku 10 (1567).
Shape: Wide and thick with a deep curve and an elongated Kissaki.
Jigane: Fine-grained with clear grain patterns and a subtle reflection.
Hamon: Based on straight Hamon with Notare Boshi and disorderly patterns.

Features: This work is likely a concerted masterpiece by Bizen no Kuni Jyu Osafune Kiyomitsu and Gorozaimon no Jo Sukesada for their master Genbei Tame judai kore saku, representing a rare collaboration. Such collaborative works for a master are exceedingly rare, possibly unique to this sword. The collaboration between Kiyomitsu and Sukesada is intriguing and rare, offering insights into the character of the Japanese and the depth of loyalty and duty exemplified by historical events like the revenge of the forty-seven Ronin for their master.

Koshirae: Tensho Koshirae
Tsuba: Round iron Tsuba with visible iron bones, thought to be of Owari origin.
Saya: Black lacquered Saya.
Kogatana: A piece by Tomindo Kazeichi.
Kozuka: Made from shakudo, depicting plants with nuts colored in gold.
Kogai: Plants carved in high relief with gold coloring on an iron base surrounded by fine gold coins at the top and bottom.
Kashira: Horn.
Menuki: High-relief carved pine needles with gold coloring.
Fuchikashira: Two pieces surrounded in copper with gold.

This sword, jointly crafted by Bizen no Kuni Jyu Osafune Kiyomitsu and Gorozaimon no Jo Sukesada for their master Genbei Tameshige, is an exceedingly rare and intricately designed piece.

Aoi Art’s Comment: The Koshirae is of Tensho style, a robust piece popular in the late Muromachi period. This work is of top quality and is expected to become increasingly popular. The signature is in the best condition and should not be missed.

NBTHK Tokubetsu Hozon Token.
Aoi Art Estimation Certificate.
Whole Oshigata.

Price: 2,500,000 yen
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