[ Feature ]
Form : Shinogi-zukuri. Iori-mune. Both mihaba and kasane are ordinal. No hira-niku attached. Moderate sori attached. Chu-kissaki extended form.
Nakago : Suri-age. Yasurimes and saki are kiri. One hole.
Jigane : Ko-itame-hada well grained. Jinie attached.
Hamon : Gunome-midare. Shima-bas mixed. Ashis and tobi-yakis appeared. Nie attached well. It is clear and bright.
Boushi : A little notare gokoro attached. It turns in ko-maru form.

[ Highlight ] The jiba is brilliant with a bright and brilliant alternating wavy blade pattern with a wide range of nie effects. Ise daijo Tsunahiro was the fifth generation of the Tsunahiro clan of the Shintō period, descended from the Sōshu Tsunahiro school active in the Muromachi period. The son of Kan'emon IV, he was a highly skilled swordsman and an excellent engraver, and received the title of Isedaijo in Manji 3(e.g. 1801). His Buddhist name was Joroku. He made signatures such as 'Soshu Ogigaya ju Minamoto Tsunahiro Saku' and 'Soshu ju Tsunahiro'. The style, which includes many shima blades similar to those of Masamune, has led to the identification of this swordsmith as Isedaijo Tsunahiro, a representative of the Soshu swordsmiths of the Shintou period.

[ Conditions ] There are three struck scars on the ridge. There is some minor rusting and scuffing.