Katana in Koshirae. (Guarantee NBTHK Hozon paper)
Signature : Mumei (unsigned) attributed as Bisyu Osafune Sukesada.
The blade was polished.
Habaki: Silver single Habaki.
Blade length : 72.0 cm or 2.83 inches.
Sori : 2.4 cm or 0.9 inches.
Mekugi : 3
Width at the hamachi :2.87 cm or 1.13 inches.
Width at the Kissaki : 2.07 cm or 0.81 inches.
Kasane : 0.67cm or 0.26 inches.
Era : Late Muromachi period.
Shape : The blade is Oosuriage Mumei (cut shortened) and regular width, thickness with deep Sori and longer Kissaki nice looking shape.
Jitetsu : Itame-hada and Mokume-hada mixture with Jinie attach and Utsuri appear on Ji.
Hamon : Konie-deki Choji midare with Ashi, Yo work.
Boshi is Midarekomi style.
Special feature : Harima, Mimasaka and Bizen province had been prospered under the protection of the Akamatsu family during Muromachi period. Above all, Bizen province has turned out a great many talented sword smiths. Supplying the demand of the Age of Provincial Wars in Japan, a huge number of swords were forged at late Muromachi period. Osafune school has been started by Mistuatda around AD1249 and Sukesada has become a symbol of the Osafune school around later Muromachi period. It is regrettable that a deluge devastated Osafune area in Tensho era.
Osafune School has been lost and old swords are all that is left to tell how the sword smiths lived in those ages.
The blade is Oosuriage Mumei(cut shortened) but the blade must be Bizen Osafune Sukesada.
Koshirae : Japanese Army sword mounting. Good condition.
Probably this sword has kept so long time as family’s treasure and when the world war started,
family’s father presented this sword to his Army son.
Family should prayed his success and hoped for returning safely.
Guarantee NBTHK Hozon paper.
Aoi Art estimation paper : whole Oshigata.