AS25225 Katana:Mumei (Enju)(NBTHK Tokubetsu Hozon Token)

Katana in Shirasaya (NBTHK Tokubetsu Hozon Token)

Signature: Mumei (Enju)
無銘(延寿)

We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.
This piece is ranked as one of the higher-grade works among Mumei (Enju) swords.
Habaki: Single-layer silver Habaki.
Blade Length: 67.5 cm (26.57 in)
Curvature: 1.0 cm (0.39 in)
Mekugi Hole: 2
Width at Base (Motohaba): 3.02 cm (1.19 in)
Width at Tip (Sakihaba): 2.19 cm (0.86 in)
Thickness of rim (Kasane): 0.75 cm (0.30 in)
Sword Weight: 810 grams
Era: Late Kamakura period (late 13th century)
Shape: This is an o-suriage mumei piece with a thick kasane and slightly deep curvature, featuring a long boshi.
Bo-hi and soe-bi carvings are engraved on the blade.
Jigane: Finely forged ko-itame hada with visible utsuri.
Hamon: Nie-based suguha with bright and clear appearance.

Features: This sword is attributed to the Enju school, active in the late Kamakura period.
The Enju lineage is said to have originated in the Kikuchi region of Higo Province, with Enju Taro Kunimura, son of Kunimura, recognized as its founder.
Signed works by Kunimura remain dated to Kenji 2 (1276), and those by Enju Kunitoki to Bunpo 2, indicating the active effort to secure swordsmiths in preparation for the Mongol invasions.
Some signed pieces of Kikuchi yari (spears) exist and were once sold as rare items by our company in tanto form.
Therefore, it is certain that this sword is a genuine work from the Kamakura period.
This is a robust piece with bo-hi and soe-bi carvings and is well-preserved.
Please treasure this excellent sword.

NBTHK Tokubetsu Hozon Token Certificate
Aoi Art estimation paper: Whole Oshigata