Katana: Oite Toto Kato Tsunatoshi/Tempo 2 Nen 8 Gatsu Hi
Katana in Koshirae (NBTHK Tokubetsu Hozon paper)
Signature : Oite Toto Kato Tsunatoshi
Tempo 2 Nen 8 Gatsu Hi
The blade was polished.
Hbaki: silver single habaki.
Blade length : 69.09 cm or 27.20 inches.
Sori : 1.8 cm or 0.7 inches.
Mekugi : 1
Width at the hamachi : 3.26 cm or 1.28 inches.
Width at the Kissaki : 2.4 cm or 0.94 inches.
Kasane : 0.78 cm or 0.30 inches.
Era : Edo period (August 1831)
Shape : The blade is wide and thicl with deep sori and long kissaki nice looking shape.
Jitetsu :Koitame hada well grained with jinie attach beautufl texture.
Hamon : Nioideki suguha from the hamachi and then gunome midare cyoji midare,
jyuuka cyoji midare hamon. Boshi is midarekomi style.
Special feature :
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.
He educated many sword makers like 7th generation Korekazu, Takahashi Naaganobu,
Seiryuken Moritoshi and so on.
This blade looks typical Yokoyama Sukenaga or Sukekane.
Probably he was senior craft man so Sukenaga studied from Tsunatoshi
and succeeded the Hamon from his master.But Tsunatoshi made different strong feeling Bizen Cyoji midare
and continued his style. By the way, This sword is nice cyoji midare hamon
and also wide and thick ookossaki style gorgeous blade.
The sword was made Tenpo uchii sword which means most shinshinto sword makers made top quality blades
at that period Tenpo era.
Tsuba :On the round shape iron Tsuba, man who is on the cow's back
and mountaine in the distace peaceful scenary.
Fuchikashira :On the iron plate, shishi dogs are engraving.
Saya : black roiro saya.
Menuki : phoenix are engraved by syakudo plate with gold color.
Tsukaito was made by the mustache of a whale.
NBTHK Tokubetsu Hozon paper
Aoi Art estimation paper : whole Oshigata.