Ordering number: 18251
Katana in Shirasaya with Koshirae.(The 63rd NBTHK Juyo Paper)
Signature: Mumei(unsigned) attributed as Tametsugu.
Sayagaki: written by Mr.Tanobe.
63th NBTHK Juyo Token
Echizen Koku Tametsugu Osuriae Mumei.
The commonly accepted theory suggests that this swordsmith was a son of Go Yoshihiro, and studied under the Norishige.
He moved to Mino province and was one of the origins of Mino-Den.
This blade has thick Jinie. The Itame Hada has Chikei.
And also thick Nie and Nioi, large Notare, Many Sunagashi, and Kinsuji. And shows the characteristics of Tametsugu.
The upper part of this blade reminds of Go.
The blade length is 2shaku 2sun 5bu.
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Saijyo saku inking.
The blade was polished perfectly top-ranking polisher.
Habaki: Gold foiled double habaki.
Blade length: 68.2 cm or 26.85 inches.
Sori :1.8 cm or 0.71 inches.
Mekugi : 2
Width at the hamachi : 2.87 cm or 1.13 inches.
Width at the Kissaki : 2.4 cm or 0.94 inches.
Kasane : 0.53cm or 0.94 inches.
The weight of the sword 645 grams.
Era : Nanbokucyo period Enbun era 1356.
Shape : The blade is oosurigae and suitable width
and thick with deep sori and long Kissaki.
On both sides of the blade engraved Bo-hi and Soe hi.
Jigane :Itame hada well grained with jinie attach and chikei work wonderful fine Jigane.
Hamon :Nie deck deep nioikuchi with sunagashi and Kinsuji work looks like
Go. Bo-shi is noter double hamon, from the middle part to Kissaki area, very active fine deep nioikuchi ash and soft Habuchi.
Bo-shi is noter double hamon round hakikake style.
Special feature:t is an accepted opinion that Tametsugu was a son of Go (No) Yoshihiro and learned under Norishige though there is still room
for more research about the difference of chrono-range among them. Both Yoshihiro and Norishige were counted among ten brilliant pupils of Masamune.
Norishige created a peculiar texture of jitetsu compounded soft and hard iron commonly called matsukawa-hada or Norishige-hada in Japanese.
Tametsugu’s works in Echizen province dated in 1357 and 1369 are still remain on the record as oshigata pictures.
An extant inscribed Noshu Ju Fujiwara Tametsugu in 1374 shows he moved to Mino province from 1369 to 1374.
Judging from the texture of jitetsu, this katana should be attributed to Hokkoku-mono,
forged in the northern province of Japan. Deep-nioikuchi, thick nie,
many sunagashi and kiusuji form an attractive temper line of Tametsugu.
Both jitetsu and hamon create a healthy impression.
Saya :black roar saya.
Tsuba :On the shibiuichi plate, kick flower style engraved.
Menuki : On the shakudo plate, some design is engraved with gold color.
Fuchi: syakudo nanako plate. kashira:horn.
From Aoi Bijyutsu: The sugata is a very beautiful and nice Jigane and also fantastic active jigane with sunagshi, kinsuji.
This sword has passed 660 years ago of course Daimyo mono.
I recommend this sword to you.
The 63rd NBTHK Tokubetsu Hozon Token
Aoi Art estimation paper: whole Oshigata.