AS20160 Katana: Mumei (Hoju)

Ordering number: AS20160
Katana in Shirasaya(NBTHK Hozon Token)

Signature: Mumei (Hoju)
無銘(宝寿)

(We divide 4 sections for each sword as Saijyo saku, Jyo-jyo saku Jyo saku and regular saku)
This sword belongs to Jyo Saku ranking.
The blade was polished.
Habaki: Silver single habaki.
Blade length:70.2 cm or 27.64 inches.
Sori:2.4 cm or 0.945 inches.
Mekugi:1
Width at the hamachi:3.0cm or 1.18 inches.
Width at the Kissaki:2.8 cm or 1.1 inches.
Kasane:0.75 cm or 0.295 inches.
The weight of the sword:675 grams.
Era: Nanbokucho period
Shape: The style is called Nagataki long sword with bo-hi which is engraved on both sides if the blade and shaved Shinogi-ji a lot and there is almost no Mune and becomes Kissaki.
Jigane: Itame hada and mokume hada mixed with jinie attach: it looks like soft rice cake, shirake utsuri appear.
Hamon: Niedeki nioikuchi is deeply Gunome midare, but Ko-ashi works well from the Monouchi area where there are many shimi and it is not clear, and it becomes Bo-shi and Yakizume.

Special feature: Although it is a work that was identified as Hoju at the Japanese Sword Museum, it seems to be Konamihei, but from the place where it was originally Gunome midare. I think that the appraisal was done as Ho-Jyu. Ho-Jyu is a swordsmith in Oshu, and it is said that many sword makers were active from the Nara period to the Kamakura period, but most of the existing works are Hou Jyu. The flow continues from the Nanbokucho period to the Muromachi period.

From Aoi Art: This work is shaped to be a work of the Nanbokucyo era from the shape of the constitution, and it has a rare unusual constitution that deeply cuts shinogi with a magnificent shape and has almost no mune. I think there were thin soehi on the front and back, but they have almost disappeared and have been carefully preserved for a long time. It is a sword of Ousyu (nothern part of Japan) that I definitely recommend. The shinogi ji became an Ayasugi-like jigane, and Ko Gassan and others may have created a unique Ayasugi hada.

NBTHK Hozon Token
Aoi Art estimation paper: whole Oshigata.