Katana
Ordering number: 08019
Katana in Shirasaya@
Signature: Oite Toto Kato Tsunatoshi Zou (NBTHK Tokubetsu Hozon Paper)
Tenpo Roku-nen Hachigatsu Kichizitsu
The blade was polished .
Blade length : 70.0 cm or 27.55 inches.
Sori : 1.5 cm or 0.59 inches.
Mekugi: 1
Width at the hamachi : 3.1 cm or 1.22 inches.
Wide at the Kissaki : 2.11 cm or 0.83 inches.
Kasane : 0.75 cm or 0.29 inches.
Era : Late Edo period.
Shape : Both sides of the blade has Bo-hi engraved.
The blade is rather wide and thick long kissaki with deep nice Sorri.
Jitetsu :Koitame hada well grained with Jinie attach.
Hamon : Niedeki Gunome midare and Cyoji midare hamon mix and in Ha,
there
are many ashi work.
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.
Koyama munetsugu succeeded his Hamon.
The Tokugawa shogunate tighten the guard against foreign
warships frequently appeared at that time.
NBTHK Tokubetsu Hozon Paper : Aoi Art estimation paper : whole Oshigata.
@