AS25001 Katana: Mumei(Unsigned)(Kobizen)(NBTHK Tokubetsu Hozon Token)

Katana in Shirasaya with Koshirae (NBTHK Tokubetsu Hozon Token)

Inscription: Mumei(Unsigned)(Kobizen 古備前)

We divide works in to Saijo Saku, Jyojyo Saku, Jyo Saku,and Regular Saku.
This piece is ranked as Jyojyo Saku for Mumei(Kobizen).

Habaki: gold-plated single habaki
Blade Length: 61.3cm (24.13in)
Curvature: 1.5cm (0.59in)
Mekugi-ana: 2
Motohaba: 2.45cm (0.96in)
Sakihaba: 3.31cm (1.30in)
Kasane: 0.34cm (0.13in)
Weight: 450g

Era: early Kamakura period, circa 1200.
Shape: a slende, slightly thin Osuriage mumei blade with Koshizori.
Jigane: fine Koitame and mokume. Midare usuri apperars.
Hamon: ko gunome and kochoji with softly blurred Nioikuchi, koashi and sunagashi.

Features:
Kobizen(old bizen) is a school of Bizen swordsmiths that originated in the mid-Heian period, with Tomonari regarded as its founder. Today, works dating mainly from the late Heian to the early Kamakura period are attributed to the Ko-Bizen school. Although this blade has been greatly shortened (O-suriage), it is a rare and valuable piece that retains the elegant shape characteristic of the Heian period. It displays the distinctive features of Ko-Bizen workmanship, including utsuri in the jigane and a delicate ko-midare hamon with a softly nioikuchi, giving the blade a profound and captivating character. The blade was polished by Sotaro Matsumura, a Mukansa-ranked sword polisher.

Koshirae:
Fuchikashira and Kojiri: Iron, chidori (plover) design.
Tsuba: Copper based tsuba with shibuichi rim.
Menuki: Paulownia design.

NBTHK Hozon Certificate
Aoi-Art estimation Paper
whole Oshigata

Please note: the price does not include the shipping fees.