|Blade length||70.0 cm|
|Moto haba / Width of the blade||31.6 mm|
|Motogasane / Thickness of the bottom part of the blade||7.1 mm|
|Saki Haba / Chip Width||Strike 23.7 mm, Yokote position 21.3 mm|
|Sakigasane / Tick Nes of te bade||Strike 5.8 mm, pine needle tip 5.1 mm|
|Nail hole / mekugi ana||1 piece|
|Age||Late Edo period
The latter period of Edo era
|Appraisal report||Preserved sword certificate|
|Official Registration Document||November 16, 2016 Kanagawa Prefecture Official Registration Document|
|Included||・ Bare copper habaki
・ Black wax-coated sheath sword fittings
|Price / Cost||498,000 Yen（FREE shipping all of the world）|
Kaifu Blacksmith prospered from Awa Tokushima’s Kaifu Shihisa to the end of the Tokugawa shogunate until the end of the Tokugawa shogunate.
Many of the works are made with single-edged blades and can be boiled. Many of the works have been inscribed as Ashu Sumi, and many blade inscriptions have been seen.
This sword opens with a good difference in the tip, the ground iron is blackish, the sword is strong, and the ground is thick and gives a strong impression. Hamon is a gentle bay with a bright and clear scent, and sand streams and gold streaks can be seen everywhere in the blade, and there are also double-edged blades on the finger surface. It is a sword that boasts a unique quality as a Kaifu sword with coarse iron and a strong image of several hits.
Nude weight 807 grams. Weight 1052 grams that was put in the sword and the sheath was removed.