Katana in Koshirae (NBTHK Tokubetsu Kicho Paper)

Signature : Bizen Osafune Ika-kiri (kiyomitsu)

The blade was polished.
Habaki : Gold and skiver foiled hdouble habaki
Blade length : 65.4 cm or 25.74 inches.
Sori : 2.4 cm or 0.94 inches.
Mekugi : 3
Width at the hamachi : 2.8 cm or 1.1 inches.
Width at the Kissaki : 1.88 cm or 0.74 inches.
Kasane : 0.71 cm or 0.27 inches.
Era : Middle Muromachi period.
Shape : The blade is regular sized with deep sori and longer kissaki,.
Jitetsu : Itame hada and Mokume hada mixed with jinie attach and chikei work.
Hamon : Niedeki shguha with kasha and Yo work.
Kissaki is brush up hakikake boshi.

Special feature : I think this Kiyomitsu's blade was made at about middle of Muromachi period.

Koshirae :
Tsuba : On the Mokko style iron stub, brass inlayed open work.
Fuchikashira : On the iron plate, Ume flowers are engraved with silver and gold plate.
Saya : Black roiro saya.
Menuki : A flower is engraved with gold color.

NBTHK Tokubetsu Kicho Paper.
Aoi Art estimation paper : whole Oshigata.