Ordering number: 22493
Katana in Shirasaya(NBTHK Tokubetsu Hozon Token)
Signature: Oumi Daijo Fujiwara Sukenao Saku
Empo 3 Nen E 9gatsu Kichijitsu Kamakura Den Oite Settsu Saku No
延宝三年卯九月吉日 鎌倉伝 於摂津作之
Shinto:Jyojyo saku:Ryo wazamono:Settsu
Sayagaki(translation): Made by Tsuda Oumi Daijo Sukenao. There is a production date: Empo 3.
It is historically interesting. Written by Kanzan on the birthday of Showa 34.
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Jyo-jyo saku ranking.
habaki: Gold foiled single Habaki
The blade is polished.
Blade length:61.21cm or 24.09inches.
Sori:0.21cm or 0.08inches.
Width at the hamachi:3.04cm or 1.19inches.
Width at the Kissaki:2.71cm or 1.06inches.
Kasane:0.82cm or 0.32inches.
The weight of the sword:635grams
Era: September of Empo 3, the Edo period
Shape: The blade is double-edged. The trace of Kogarasumaru. Very rare.
Jigane: Koitamehada is grained well. Dense and beautiful Jigane.
Hamon: Niedeki. Nioikuchi is slightly deep. Gunomemidare goes to the tip and go divided towards right and left. Hamon becomes Midarekomi at the tip.
Special feature: Oumi Kami Sukenao was born in Kanei 16 in Takagi in Oumi Province. He was called Magotaro and learned sword-making by Tsuda Sukehiro. It is said that he became a bride of Sukenao’s sister later. After he became independent, he went back to Takagi, but he returned to Osaka because his master died in Tenna 2. His production started in Kanbun 8 and ended in Genroku 6(when he was 65 years old). His style is strongly influenced by his master. Toranba, Gunomemidare with deep Nioikuchi, Notare, and Suguha. Nioi is deep and Nioikuchi is bright. He sometimes made works better than his master.
From Aoi Art: This work is very rare: Moroha(double edged) trace of Kogarasumaru shape. Tsuruta has never seen something like this before.There is a line at the centre, and there are also two other lines on the both sides. His works that has strange shape or are made in the time when he became Oumi Daijo are really rare, we have only a few. We have also back-Mei”Kamakuraden Oite Settsu Tsukuru Kore), this work is historically rare.
NBTHK Tokubetsu Hozon Token paper
Aoi Art estimation paper: whole Oshigata by Ayaka Tsuruta