Tachi : Mumei (Senjuin)
Tachi in Shirasaya(NBTHK Tokubetsu Hozon Paper)
Signature: Mumei (Senjuin)
The blade was polished.
Habaki: Gold Single Foiled Habaki
Blade length : 64.9cm or 25.55 inches.
Sori : 1.4 cm or 0.55inches.
Width at the hamachi : 2.87cm or 1.13 inches.
Width at the Kissaki : 1.86cm or 0.73 inches.
Kasane : 0.65cm or 0.26inches.
Era : Kamakura period.
Shape : It is O-Suriage mumei sword with some sdith and thickenss.
It is strong looking piece with some lenth at the kissaki area.
Jitetsu :Koitame hada well grained with flow of masa.
There is jinie attached and is clear as a water surface.
The shinogi-ji is same and it is itame hada with some flow of masa hada.
Hamon : Nie Deki suguha with some nijyuba and some sunagashi and kinsuji works.
There is some kinsuji works.
Special feature : Senjyuin school is a sword smith group of Yamato and was successful during late Edo period.
They belonged to Yamato Koku Nara todaiji and has tought the making of katana to the Zohei or monk warrior.
Tegai, Taima, HOsho and Shikkake or the other group of yamato province also were active at Nara.
The Senjyuin school is said to be the most old school of the Big five sword smith.
This piece shows the characteristic of Senjyuin school well and the sword has passed Tokubestu Hozon.
NBTHK Tokubetsu Hozon Paper
Aoi Art estimation paper : whole Oshigata.