Appraisal Quiz : #386

Previous answer is
Oite Efu Chounsai Tsunatoshi/Tenpo 12 nen 2 gatsu (February 1841)

Special feature : Chounsai Tsunatoshi the First forged this katana at Edo in 1846.
Born Kato Hachiro in Dewa province, present Yamagata pref.
as the Third son of Izumi (No) Kami Kunihide in 1798, learned under Suishinshi Masahide.
Kato Tsunahide, known as its excellent Toran-ba hamon was Tsunatoshi’s elder brother.
Tsunehide moved to Osaka from Edo and learned under Suzuki Harukuni.
After that Tsunahide went to Kyushu Island and forged sword at Kumamoto.
Around 1823, he lived a house of the Uesugi family at Azabu in Edo.
He passed away in 1863, aged 66.
Tsunatoshi’s excellent pupils, from his nephew Ishido Korekazu the seventh down,
Koyama Munetsugu, Takahashi Naganobu, Seiryuken Moritoshi
and others formed an influential school in that period that outstripped
the Suishinshi school in the sphere of Bizen-den.
As you know Tenpo uchi sword which means at the end of Edo period,
many sword makers who were making swords at Tenpo era,
they made swords compete each others.
So at Tenpo era, high rebel swords were made at Tenpo era.
Tsunatoshi is also Tenpo uchi swords are higher than other era.

Appraisal Quiz #386 (May 5th, 2016)
Who made this sword do you think ?


Hints. ※The picture will be enlarged

Blade length : 46.95 cm or 18.48 inches.
Sori : 0.9 cm or 0.35 inches.
Mekugi : 1
Width at the hamachi : 3.71 cm or 1.46 inches.
Width at the Kissaki : 2.99cm or 1.17 inches.
Kasane : 0.88 cm or 0.34 inches.
Shape : Wide and thick Wakizashi. There are Bo-Hi, Koshi-Hi and Soe-Hi on both side.
Jitetsu : Koitame hada well grained with jinie attached. There is fine chikei works.
Hamon : Nie Deki, Gunome Midare with rather deep Nioiguchi.


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