Gunto : Koa Issin Mantetsu Saku/Syowa Kiuharu (1939)
Ordering number : 15813
Katana in Shirasaya,
Signature : Koa Issin Mantetsu Saku
Syowa Kiuharu (1939)
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Jyo saku ranking.
The blade was polished.
Habaki : Copper single habaki.
Blade length : 66.8 cm or 26.29 inches.
Sori : 1.8 cm or 0.70 inches.
Mekugi : 1
Width at the hamachi : 3.12 cm or 1.22 inches.
Width at the Kissaki : 1.97 cm or 0.77 inches.
Kasane : 0.69 cm or 0.27 inches.
Era : Syowa (1939)
Shape : The blade is wide and thick healthy blade.
Jigane : Koitame hada well grained with Muji Hada.
Hamon : Nioideki suguha
Special feature : Mantetsu-to is a kind of cold-tolerant gun-to appropriate for a cold northern district in Manchuria in China.
South Manchuria Railways Co. planned it in 1937.
After a series of experiments, they finally succeeded in making satisfactory katana and started to mass-production at Dalian in 1938.
It was a remarkable improvement at that time because usual oil-tempered gunto was easily broken in severe cold.
It is said that the mantetsu-to endured in the temperature minus fourty degrees.
The texture of jitetsu shows fine nashi-ji by excellent polishing.
It looks like as if it were a Tadayoshi the seventh's sword of Hizen-to.
Only a few Mantetsu-to barely escaped as an article left by the deceased from disposing of junk in Japan and survive as if it were a witness of wartime.
Koshirae : Rikugun Gunto Koshirae(Army Gunto Koshirae)
Aoi Art estimation paper : whole Oshigata.
Price : 500,000 JPY- (including shipping and 100% insurance fee)