Signature : Yokoyama Kagasuke Fujiwara Ason Sukenaga
Tenpo 4 nen 2 gatsu Hi (February 1833)
Kikumon Ichi Biyou Osafune Ju
The blade was polished.
Blade length : 69.9 cm or 27.51 inches.
Sori : 1.8 cm or 0.70 inches.
Mekugi : 1
Width at the hamachi : 3.09 cm or 1.21 inches.
Width at the Kissaki : 1.87 cm or 0.73 inches.
Kasane : 0.72 cm or 0.28 inches.
Era : Edo period. around Tenpo era.
Shape : Regular width and thick blade.
Jitetsu : Ko-Itame Hada well grained with Jinie attached.It is clear Jigane.
Hamon : Nioi Deki, Suguha Hamon. Boshi is round shape.
Special feature : This sowrd was forged by second generation of Sukenaga known as Tomonari's 57th generation descendants, Bizen Osahune Yokoyama school.
This blade is Suguha Hamon and nice clear Jigane.
NBTHK Hozon Paper
Aoi Art estimation paper : whole Oshigata.