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Katana:Mumei (attributed to Nio)(NBTHK Tokubetsu Hozon Token)

Ordering number:AS24050

Katana in Shirasaya with Koshirae (NBTHK Tokubetsu Hozon Token)

Signature: Mumei (attributed to Nio)

We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.
This work is ranked as Jyojyo Saku for Mumei (Nio).
Registered with Daimyo: Fukuoka Prefecture No. 10526, issued on March 29, Showa 26 (1951).
Habaki: Gold-wrapped double-edged.
Length: 2 Shaku 2 Sun 9 Bu (69.4 cm, 27.32 in).
Curvature: 5 Bu (1.5 cm, 0.59 in).
Mekugi Hole: 2.
Width at Base: 3.19 cm (1.26 in).
Width at Tip: 2.17 cm (0.85 in).
Thickness: 0.65 cm (0.26 in).
Sword Weight: 855 grams.
Era: Late Kamakura to early Nanbokucho period.
Shape: Broad body, thick kasane, slightly deep curvature, and slightly extended kissaki.
Jigane: Fine koitame-hada, well-forged and excellent steel with faint utsuri.
Hamon: Bright nioiguchi with soft ko-ashi.
Boshi: Midarekomi with small round return.

Features: The Nio school of Suo province is said to have begun with Kiyomasa or Kiyohira during the Hoen period, but no definite works remain, and today Kiyotsuna of the mid-Kamakura period is considered the de facto founder. The oldest extant example by Kiyotsuna is a tachi signed "Kiyotsuna, March, Bun'ei 2 (1265)," followed by a tanto signed "Kiyotsuna of Suo Kuga-sho, Kenmu 2, May 15," with works carrying the same signature continuing into the Shinto period. Due to the influence of the manors of Todai-ji Temple in Yamato, many Nio school works exhibit a strong Yamato style, featuring suguha hamon. However, compared to Yamato province, the jigane often displays white utsuri, and the hamon tends to have a slight cloudiness. The origin of the name "Nio" is associated with a legend involving a battle in Sugimori, where Kiyotsuna used his sword to cut through a large iron chain and save the Nio statues from a burning shrine, leading to the name "Nio Saburo" and the school's association with the Nio name. The area in Kuga Town, Yamaguchi Prefecture, where Nio Kiyotsuna is said to have lived, has traditions linked to the Sugimori name and is near the former residence of the Ouchi clan at Kurakake Castle.

Koshirae: Tachi Koshirae.

Aoi Art’s Comment: The Nio school, founded by Kiyotsuna, spanned from the Kamakura to Nanbokucho periods. This well-made piece features clear, bright jigane and a bright hamon with soft ashi.

NBTHK Tokubetsu Hozon Token.
Aoi Art estimation paper.
Whole Oshigata.

Auction Starting Price:1,650,000JPY

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