AS15901 Katana:Mumei attributed as Enju.

Ordering number:AS15901
Katana in Shirasaya (NBTHK Tokubetsu Hozon Token)

Signature:Mumei attributed as Enju.
無銘（延寿）

(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs toJyo Jyo Saku ranking.
The blade was polished.
Habaki :　Silver single habaki.
Blade length : 67.6 cm or 26.6inches.
Sori :1.7 cm or 0.66inches.
Mekugi : 3
Width at the hamachi : 3.0 cm or 1.18inches.
Width at the Kissaki : 2.15 cm or 0.84inches.
Kasane : 0.75 cm or 0.29inches.
The weight of the sword :805grams.
Era : Late Kamakura period
Shape : Osuriage-Mumei, the blade is broad and thick, Bo-hi on the both sides.
Jigane :Itame-hada mixed with Mokume-hada, Jinie is thick and Chikei comes in, vague Utsuri appears.
Hamon :Niedeki Suguha, Koashi and Ha work very actively, becomes like Niju-ba, Boshi turns back round.

Special feature:Enju school was founded by Kunimura, who is said to be a pupil of Rai Kunitoshi from Yamashiro. They flourished from the late Kamakura period to Nambokucho period in Higo Kuni Kikuchi, and employed by Kikuchi family(a loyal retainer of the South government. Its popularity declined at the same rate as Kikuchi family declined, and lasted to the late Sengoku period. There are Mei like Kunimura, Kunitada, Kuniyoshi, Kuniyasu, and Kuninobu, most of them are 2 digits. The style is similar to Rai school. This work has a well-grained Jigane and its body shape is nice, and it stands as if it were Koto; very nice. Apparently it looks like Kunimitsu from Rai school. Besides, Enju tended to make Niju-ba like this work.

From Aoi Art:Enju school made almost only Suguha-deki. Their Jigane is grained very closely to be elaborate and well-made Jigane, also Utsuri appears. Apparently this looks like Rai-Jigane: Jigane is good and bright Suguha-deki finally to become Niju-ba; very classical and dignified. Chikei comes into well-grained Jigane: very unique Jigane and there are many variations and changes like Koashi comes in Suguha-deki. It is also polished very carefully and weill, it brings out the greatness of the sword.

NBTHK Tokubetsu Hozon Token
Aoi Art estimation paper:whole Oshigata. Miss Ayaka.