Wakizashi : Bizen Koku Osafune Ju Sukenaga
Wakizashi in Shirasaya (NBTHK Hozon Paper)
Signature : Bizen Koku Osafune Ju Sukenaga
Bunsei 7 nen 2 gatsu hi (February 1824)
Shinshinto: Jyo saku: Bizen.
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku
Jyo saku and regular saku)
This Bizen Koku Osafune Ju Sukenaga belongs to Jyo jyo Saku ranking.
The blade was polished.
Blade length : 33 cm or 12.99 inches.
Sori : 0.66 cm or 0.25 inches.
Mekugi : 1
Width at the hamachi : 2.75 cm or 1.08 inches.
Kasane : 0.73 cm or 0.28 inches.
Era : Late Edo period, around Bunsei era(1824).
Shape : Ragular size Hirauchi Wakizashi with Sori.
Jitetsu : Ko-Itame Hada well grained. Jigane is very clear.
Hamon : Nie Deki, The mixture of Gunome Midare and Choji Midare.
Around the Hamachi part is Suguha. The it becomes to be a wavy Choji-midare.
Special feature : Bizen koku Osafune Ju Sukenaga is a Yokoyama school.
He is a second son of Yokoyama Sukehira.
At Tenpo 4 (A.D. 1833), he received “Kagasuke” as his title.
He brought up a large number of students.
Then he became to be allowed to engrave Kiku-mon(chrysanthemum flower) as 56th decedent of Tomonari.
His Hamon is very original Nioi-deki Shoji-midare and evaluated.
This style of the Hamon is accepted as Yokoyam a school's originality.
This bladeisSuguha from the hamachi, and then become Choji Midare and turn back at Kissaki.
NBTHK Hozon Paper
Aoi Art estimation paper : whole Oshigata.