Order number : AS16074
Tanto in Koshirae(NBTHK Hozon paper)
Signature : Mumei(unsigned) attributed as Kouda
The blade was polished by good polisher.
habaki:copper single habaki.
Blade length : 24.6 cm or 9.68 inches.
Sori : 0.0 cm Uchizori style.
Mekugi : 2
Width at the hamachi : 2.01cm or 0.79 inches.
Kasane : 0.7cm or 0.27 inches.
Era : Late Kamakura to early Nanbokucyo period.period.
Shape : The blade is wide and thicl Kanmuri otoshi style.
Jitetsu :Koitame hada well grained with jinie attach and small chikei work blackish jigane.
Hamon : Niedeki double hamon, Threefold sunagashi
and kinsuji wprk active wild feeling active hamon.
Special feature : Uda school has moved from Yamato Kuni Uda ward to Ecchu Province.
The school was established by Ko Nyudo Kunimitsu.
The school started in Kamakura period and has flourished until Edo Period.
The Uda school during Kamakura Priod to Nanbokucho period is generally called “Ko-Uda”.
The second generation Kunifusa has learned under Norishige after his father’s dealth.
The piece has mixed both soft and hard steel which resembles Norishige works.
the jinie is thick and Chikei is wildly attached.
The well forged steel has come up with a clear hada pattern.
This piece is from late Kamakura peirod to Nanbokucho period.
It is Itame hada with mixture of O-Itame hada.
At first glance, the strong jigane reminds of Norishige works.
There is long Kinsuji work appearing in the ha.
The hakikake hamon on the boshi is nice work.
Saya : on the black roiro saya, Aoi family crests are painted by gold color.
NBTHK Hozon paper
Aoi Art estimation paper : whole Oshigata.