Katana in Shirasaya (16th NBTHK Juyo paper with Kocyu Origami)
Signature : Mumei(unsigned) attributed as Kobizen Nobufusa.
2:Tanobe sensei:oosuriage Mumei Kanei7th Honami Kocyu origami Dai kinsu 15mai. Domei wa Kobizen to Koichimonji ga aruga Honsaku ha Zensya nari. Ne syucyo Komidare wo Yaki Ajiwabukaiku Huukaku wo shimeshi Yuhin Nari
Hacyo 2syaku 4 bu Chinchin Cyocyo.
Explanation:The blade is oosuriage mumei with very precious Origami which was written by Honami kocyu Price is 15 mai.
There are 2 Nobufusa kobizen and koichimonji but this sword belongs to kobizen school.
The blade is Koniedeki cyoji midare which is tastes and deep and also
classical elegant high quality blade.
The blade was polished.
Blade length : 61.52 cm or 24.22 inches.
Sori : 1.515cm or 0.59 inches.
Mekugi : 3
Width at the hamachi : 2.45cm or 0.96 inches.
Width at the Kissaki : 1.72cm or 0.67 inches.
Kasane : 0.48cm or 0.18 inches.
Era : Late Heian period.824 years ago.
Shape : The blade is shallow with regular sori beautiful shape.
Jitetsu :Koitame hada well grained with a lot of jinie attach excellent jigane.
Hamon : konie deki gunome midare Chyoji midare hamon up and ddown and tobiyaki work and doubke hamon near Hamachi area.
Special feature : There are 2 Nobuffusa Kobizen and koichimonji.
This sword belonges to Kobizen school.
The style of Kobizen generally high Koshizori and Utsubuse style sword.
The blade was cut shortend so this sword doesn’t have much sori.
The sword do not have Kizu and openings because the blade is Muku kitae without Shingane.
Also we can find the texture of the Jigane well because the Shinogiji was not engraved Bo-hi.
The most reliable Kanteisyo in Japan is Kocyu Origami.
I think this sword has kept in good condition for a long period by Daimyo or aristocrats.
The blade is very precious sword with Kocyu Origami.
16th NBTHK Juyo paper.
Aoi Art estimation paper : whole Oshigata.