Katana in Shirasaya (NBTHK Tokubetsu Hozon paper)
Signature : Shouji Chikuzen Daijyo Taikei Naotane(Kao)
Oite Todai ji Jo ka Saku Kore
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku, Jyo saku and regular saki)
This Naotame belongs to Jyojyo saki ranking.
Shinshinto : Saijyo saku (the top ranking sword)
The blade was polished.
Habaki : Gold foiled single habaki.
Blade length : 68.8 cm or 27.08 inches.
Sori : 1.2 cm or 0.47 inches.
Mekugi : 2
Width at the hamachi : 2.8 cm or 1.10 inches.
Width at the Kissaki : 1.98 cm or 0.77 inches.
Kasane : 0.75 cm or 0.29 inches.
Era : Late Edo period.
Shape : The blade is elegant shape.
Jitetsu : Koitame had well grained with jinie attach and wonderful Utsuri appear.
Hamon : Noideki gunome mmidare and Cyoji midare mixed with kasha work.
Boshi is midarekomi and togari and turns back.
Special feature : Taikei Naotane was born at Dewa province and got the title of Chikuzen Daijyo.
After he went to Edo and studied under the Suishinshi Masahide.
His skill was excellent and outstrip his master Suishinshi Masahide.
His Bizenden and soshu den are excellent work.
I saw Jyuyo bijyutsu many years ago, the blade is very similar with Koto blade like Norishige.
This sword is up and down choji midare and gunome midare mixed.
Utsur is very clear. This sword is typical Naotane bizen style hamon.
The condition is very good.
NBTHK Tokubetsu Hozon paper
Aoi Art estimation paper : whole Oshigata.