AS20598-Katana: Hizen Koku Kawachi Daijo Fujiwara Masahiro(1st geenration)

Katana in Shirasaya(NBTHK Tokubetsu Hozon Token)
Signature:　　Hizen Koku Kawachi Daijo Fujiwara Masahiro(1st geenration)

Shinto: Jyo Saku: Wazamono: Hizen.
(We divide 4 sections for each sword as Saijyo saku, Jyo-jyo saku Jyo saku and regular saku)
This sword belongs to Jyo Jyo saku ranking.
The blade was polished by high ranking polisher.
Habaki :　Silver single habaki.
Blade length :　71.4　cm or 28.11 inches.
Sori : 1.2 cm or 0.48 inches.
Mekugi: 1
Width at the hamachi: 2.94 cm or 1.16 inches.
Width at the Kissaki: 1.97 cm or 0.78 inches.
Kasane : 0.63 cm or 0.25 inches.
The weight of the sword grams.
Era : Edo period Kanei era.
Shape : The blade is regular width thickness with suitable sori and longer Kissaki.
Jigane :Koitame hada well grained with jinie attach beautiful nice hizen konuka hada.
Hamon: Nie Deki Gumowe Midare Hamon like summer clouds in the blue sky. In hamon, sunagashi, kinsuji work.
Bo-shi is round and midarekomi hakikake style.

Special feature: First-generation Masahiro was working for the Nabeshima family
and Grandchild of first generation Tadayoshi.
He made unusual Cumulonimbus cloud-style Hamon and was well repotted from that period.
Even in modern times, many sword collectors collect his swords.
He changed his name to Masahiro on Kanei 2nd November and got the title Kawachi Daijyo in May of the same year.
He passed away on Kanbun 5th, Feb, 5th.
His Hamon is a Special province of all of swords makers.
2nd generation Tadahiro sometimes made like this hamon but this kind of Hamon was made by Masahiro as Daisaku.
this blade is healthy and typical his Cumulonimbus cloud Hamon.

From Aoi Art: Gunome Midare Hamon, which was created to imitate cumulonimbus clouds in the blue sky of midsummer, is unrivaled by a swordsmith, who expresses lightning in Kinsuji. Although it is evaluated as a Shinto masterpiece by Toko Jiten etc., in my opinion, it possesses the skill of a swordsmith who is located in the best and finest works. This work is a typical work of Masahiro, and he makes Midareba Hamon well

NBTHK Tokubetsu Hozon Token.
Aoi Art estimation paper: whole Oshigata.