Katana in Shirasaya (Accompanied with a certificate issued by the Museum of Japanese sword fittings)

Signature : Bizenkoku Ju Osafune Sukesada Saku
Genki 2nen 2 gatu Hi

The blade was polished.
habaki: gold foiled single ganseki habaki.
Blade length : 72.4 cm or 28.5 inches.
Sori : 1.9 cm or 0.74 inches.
Mekugi : 1
Width at the hamachi : 3.1 cm or 1.22 inches.
Width at the Kissaki : 2.91 cm or 1.14 inches.
Kasane : 0.79 cm or 0.31 inches.
Era : Late Muromachi period.1571(440 years ago)
Shape : The blade is regular sized with rather deep sori and longer nakago.
Jitetsu : Itame hada and mokume hada mixed with jinie attach nice jigane. on the shinogiji, some lose hada but not serious.
Hamon : Niedeki suguha with komidare hamon.
In Hamon, there are sunagashi and also jinsuji work.
boshi is midarekomi turns back.

Special feature : Sukesada and Kiyomitsu were both working at late Muromachi period and made accountable swords also exported Japanese swords to China and Korea.
The best quality swords is called Chumonuchi sword (Daimyo class ordered special quality sword which were mentioned Zokumyo (real sword maker's name) and then upper class was called Bizen Koku like this sword and them mass productive swords like Bishu Osafune .
These swords were used as regular samurai.
This sword is good Jigane without kizu and flow except Shinogi line but not serious.
The sword has passed 440 years ago which is precious historical sword.

Accompanied with a certificate issued by the Museum of Japanese sword fittings.
Aoi Art estimation paper : whole Oshigata.