Ordering number : AS18493
Katana in Shirasaya with Koshirae.(NBTHK Tokubetsu Hozon Paper)
Signature : Mumei attributed as Ryo Hisanobu.
Koto:Jyo saku :Yamashiro.
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to yo Jyo saki ranking.
The blade was polished.
Habaki :Gold wrapped double habaki.
Blade length : 65.7 cm or 25.86 inches.
Sori :1.9cm or 0.74 inches.
Mekugi : 2
Width at the hamachi : 2.5 cm or 0.98 inches.
Width at the Kissaki : 1.5cm or 0.59 inches.
Kasane : 0.5 cm or 0.19 inches.
Era : Kamakura period Enkei era. 1308.
Shape : The blade is Ubu nakago original shape
Kodachi which is rather
slender Deeo sori beautiful shape.
Jigane :Komokume had well grained writhe jinie attach
and massage had appear.nioi deck sug
Hamon :Suguha hamon nioideki bright and clear.
Boshi: is round midarekomi hamon.
Special feature:Ryo Hisanobu is called Kuro daemon
who was a son of the Ryokai. The blade is similar like
Rai school or his father’s nobukuni style.
He sometimes made his father’s sword as Daisaku.
Koshirae : Tachi Kosirae all matching Koshirae.
Saya :on the black brown color saya, some designe are engraving.
Tsuba :Kiku flower design is engraved by copper plate.
Menuki : a dragon is engraved by solid gold ?
Fuchikashira and other fittinggs are all matching shibuichi palte.
From Aoi Art: The sword is Ubu nakago Kodachi (small size sword) with deep sori attractive beautiful deep sori
and has kept so long period(710 years) and also with nice Koshirae.
The sword is keeping good condition and nice elegant shape.
Koshirae is not ornate koshirae but well harmony with this sword.
Aoi Art estimation paper : NBTHK Tokubetsu hozon paper.