Katana in Shirasaya, with Koshirae(NBTHK Hozon paper)
Signature : Hizen koku Junin Hiroyuki saku
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku
Jyo saku and regular saku)
This Hiroyuki belongs to Jyojyo saku ranking.
The blade was polished
Blade length : 63.6 cm or 25.03 inches.
Sori : 0.9 cm or 0.35 inches.
Mekugi : 2
Width at the hamachi : 3.21 cm or 1.26 inches.
Width at the Kissaki : 2.22 cm or 0.87 inches.
Kasane : 0.73 cm or 0.30 inches.
Era : Edo period. Around Kanei to Meireki era.
Shape : : It is wide and thick with shallow sori.
Jitetsu :Koitame hada well grained with jinie attached.
It is clear Konuka hada of Hizen school .
Hamon : Nie Deki, Gunome Midare, There is active sunagashi
and kinsuji works in the ha. Boushi is round hakikake style.
Special feature : Hizen koku Junin Hiroyuki was studied under Tadayoshi first generation.
His real name is Miyoshi Rokuzaemon.
He also engraved the signature as “Hirokatsu”.
He moved to Aki province or Awa province.
This blade is typical Hizen sword. This Jigane is so beautiful.
Tsuba : Round shape Shaudo Tsuba.
Fuchi: Shakudo, dragon is engraved with gold color.
Kashira : Black horn.
Saya : Black Roiro Saya with gold color family crest.
Menuki : Dragon is engraved with gold color.
NBTHK Hozon paper
Aoi Art estimation paper : whole Oshigata.