Ordering number : 18523
Katana in Shirasaya with Koshirae.(NBTHK Tokubetsu Hozon Paper)(Consignment Sale)
Signature : Mumei (Kouda)
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Jyo Jyo saki ranking.
The blade was polished.
Habaki : copper single habaki.
Blade length : 67.1 cm or 26.42inches.
Sori :1.1cm or 0.433 inches.
Mekugi : 2
Width at the hamachi : 2.9 cm or 1.142 inches.
Width at the Kissaki : 2.0 cm or 0.79 inches.
Kasane : 0.58 cm or 0.23 inches.
Era : Nanbokucyo period.
Shape : The blade is oo suriage mumei(cut shortened)
with regular widthm thickness and suitable sori
and longer kissaki which looks like Nanbokucyo style.
Jigane :koitame and komokume midair mixed
with masanagare, jinie attach.
Shinogiji: item had and mokume had mixed with masanagare and some oohed.
Hamon :Niedeki suguha based with thick nioikuchi and Urumi gokoro
from the middle to upper part, gunome midair with ash, yo scatter active
temper line. In the Hamon, there are many sunagasi and kinsuji work.
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.
Tsuba: Round shape iron Tsuba, some design is engraved with open work.
Menuki: Shakudo, Samurai is engraved with gold color.
Fuchikashira: Shakudo, Samurai is engraved with gold color.
Saya: Black Rorio Saya.
Kogai: Copper, Kiri Mon are engraved.
From Aoi Art:THis sword was judged as Kouda with Tokubetsu Hozon Token.
This blade has kept 670 years of ages so The shinogo Ji and Hamon looks
slightly weak but still active teemper line on the upper part
of the blade. Especially from middle to Kissaki hamon is typical Kouda school hamon.
Back ground of age: At Nanbokucho perind, Nancho power becomes decline.
Aoi Art estimation paper :NBTHK Tokubetsu hozon paper.