Katana : Mumei (Kouda)
Katana in Shirasaya. (NBTHK Tokubetsu Hozon paper)
Signature : Mumei (Kouda)
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku, Jyo saku and regular saku)
This sword belongs to Jyojyo saku ranking.
The blade was polished by high ranking polisher.
Habaki : Gold double Habaki.
Blade length : 62.2 cm or 24.48 inches.
Sori : 1.8 cm or 0.70 inches.
Mekugi : 2
Width at the hamachi : 2.92 cm or 1.14 inches.
Width at the Kissaki : 2.29 cm or 0.90 inches.
Kasane : 0.64 cm or 0.25 inches.
Era : Nanbokucho period
Shape : The blade is oosuriage mumei and rather wide and thick with deep sori. It is O-kissaki nice shape katana.
Jigane : Masame Hada and Itame Hada mix with Jinie attached and long chikei work along with masame hada. Shinogiji is Masame Hada and Itame Hada mixed.
Hamon : Notareba with soft Ashi work. There is sunagashi and kinsuji works. Boshi is Hakikake style and Yakitsume style.
special feature : The Uda school is said to have originated in Yamato province.
The founder Kunimitsu moved to Ettyu province in the last Kamakura period.
It is said that his son, Kunifusa learned under Norishige who created a peculiar texture of jitetsu compounded soft and hard iron commonly called matsukawa-hada or Norishige-hada in Japanese.
Consequently the texture of jitetsu is a point worthy of appreciation of Uda School that was very good at making use of well-tempered iron's special qualities. Especially conspisious chikei appeals us strongly.
NBTHK Tokubetsu Hozon paper
Aoi Art estimation paper : whole Oshigata.