Ordering number : 13646
Katana in Shirasaya, with Koshirae.(NBTHK Hozon Paper)
Signature : Sesshu Ju Fujiwara Nagatsuna
The blade was polished
Habaki : gold single foiled habaki
Blade length : 70cm or 27.56inches.
Sori : 1.2cm or 0.47inches.
Mekugi : 2
Width at the hamachi : 3cm or 1.18inches.
Width at the Kissaki : 2.25cm or 0.88inches.
Kasane : 0.76cm or 0.3inches.
Era : Edo period circa Kanbun
Weight of blade: 810g
Shape : The nakago is cut shorten about 4.5cm(1sun 5bu).
It is wide and thick blade. Kissaki is long end. It is in very good shape.
Jitetsu : Koitame hada well grained with jinie attached.
Hamon : Konie base, gunome shoji with long ashi.
Special feature : Nagatsuna is called Kitamura Ichi uemon.
He was a student of first generation Omino kami Tadatsuna.
This katana is very similar to Tadayoshi’s works.
Tsuba :Round shape iron tsuba with pine leaves engraved in open works.
It is made in mid Edo period.
Fuchikashira : Warriors are engraved and inlayed with gold on iron plate.
Saya : Black Ishimeji saya
Kojiri : Iron
NBTHK Hozon Paper
Aoi Art estimation paper : whole Oshigata.