Ordering number: 19501
Katana in Shirasaya(NBTHK Hozon Paper)
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Saijyo saku(top ranking sword) ranking.
The blade was polished high grade polisher.
Habaki : Gold failed J single habaki.
Blade length : 69.7 cm or 27.44 inches.
Sori : 1.5cm or 0.59 inches.
Width at the hamachi: 3.06 cm or 1.2 inches.
Width at the Kissaki: 2.29 cm or 0.9 inches.
Kasane : 0.69 cm or 0.27 inches.
The weight of the sword 740 grams.
Era: Late Edo period.
Shape: The blade is rather wide and thick
with regular sori（curvature) with longer kissaki nice looking shape.
Jigane: Ko itame had well grained with jinie attach
and chikei work clear nice texture.
Hamon: Nie deki gunome midare with thick nioikuchi
and visible to see the texture well.
Special feature: Kinitoshi has not mentioned any books but the quality is very nice like Koyama Munetsugu.
I think the blade is the highest quality of his sword.
From Aoi Art: I saw the first time to see the Kunitoshiin my life. For the first time,
I glanced the blade and looked like Koyama Munetsugu but If the sword is Munetsugu, the Jigane is Muji style
but this sword has koi time and mokume had mixed
and can see the texture well.
Probably He helped to make swords for his master.
NBTHK Hozon Token
Aoi Art estimation paper: whole Oshigata.