Masterpiece:Koyama Bizen Suke Fujiwara Munetsugu.
Katana in Shirasaya NBTHK Tokubetsu Hozon paper
Signature: Koyama Bizen Suke Fujiwara Munetsugu.
Ansei 3 Nen 8 Gatsuhi.
The blade was polished .
Blade length : 71.0 cm or 27.95 inches.
Sori : 1.8cm or0.71 inches.
Width at the hamachi :2.85 cm or 1,122 inches.
Wide at the Kissaki : 1.95 cm or 0.77inches.
Kasane : 0.71cm or 0.28inches.
Era : Late Edo period.
Shape : The blade is rather wide and thick deep Sori nice looking shape.
Jitetsu :Koitame hada well grained with much Jinie attach.
Hamon : Niedeki Gunome midare with deep Nioikuchi.
In Ha, there are many Ashi work.
Special feature :First generation Munetsugu was born at Mutsu Shirakawa province as a son of Koyama Munehira. His name was Soubei.
He was working for Matudaira Daimyo family as a sword making Samurai.
He moved to Kuwana province with his master and then he moved to Edo Tenpo 2 nd year.At that time he was a well known sword smith and many Samurai asked to make his swords. His sword is well known as well cut and we can see many swords mentioned Saidanmei and also possession name on the tang of the blade.
Generaly speaking the quality of Munetsuga is one of the top sword smith in late Edo period and without any faults among his swords.
This katana was introduced in the book "The Token to Rekishi" .
NBTHK Tokubetsu Hozon paper : Aoi Art estimatin paper : whole Oshigata.