Katana in Shirasaya (NBTHK Hozon Paper)
Signature : Namihira Yasuhiro.
shinto:Ryosaku ranking: Satsuma province.
The blade was polished.
habaki:silver single haabaki.
Blade length : 73.42 cm or 28.90 inches.
Sori : 1.66 cm or 0.65 inches.
Mekugi : 1
Width at the hamachi : ３.２３５cm or 1.27 inches.
Width at the Kissaki : ２.２２cm or 0.87 inches.
Kasane : ０.７７cm or 0.30 inches.
weight : 930grams
Era : Edo Period Kyoho era.
Shape : The blade is wide and thick with long kissaki nice looking shape.
Jitetsu :Itame hada well grained with jinie attach Masa nagger,and chikei work.
Hamon : Niedeki suguha and noter mixed and kogunome midair.
In Hamon, there are many ash, sunagashi, and also small kinsuji work. Boshi is hakikake style.
Special feature : Namihira Yasuhiro was a son of the Satsuma Yasutada who
was called Yasutomi and then he was changed his name to Hashiguchi Sozaemon.
The blade is typical Naminohira school Jigane which is item had masanagare.
The blade is healthy without Kizu and flow.
NBTHK Hozon Paper
Aoi Art estimation paper : whole Oshigata.