Katana in Shirasaya(NBTHK Kicho paper)
Signature : Bishu Osafune Sukesada
Eiroku 10 nen 8 gatsu Hi (August 1567)
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku
Jyo saku and regular saku)
This Bishu Osafune Sukesada belongs to Jyo saku ranking.
The blade was polished.
Blade length : 69.24 cm or 27.27 inches.
Sori : 2.4 cm or 0.94 inches.
Mekugi : 1
Width at the hamachi : 2.90 cm or 1.14 inches.
Width at the Kissaki : 2.03 cm or 0.79 inches.
Kasane : 0.67 cm or 0.26 inches.
Era : Muromachi period. around Eiroku era
Shape : Regular size blade with deep Sori. Kissaki is long. Ubu-Nagago.
Jitetsu : Ko-Itame Hada and Mokume Hada mixed.
There are Ohada and some small Kizu. But there are nice Utsuri.
Hamon : Nie Deki, Suguha base with double-Ha.
There are Ashi, Yo and Sunagashi. Boshi is round shape.
Special feature : Bishu Osafune Sukesada has flourished during late Muromachi period.
Sukesada made many mass productive items.
However, this blade is Ubu and a process of folding and forging.
There are some small Kizu. But the shape is good.
NBTHK Kicho paper
(We guarantee this katana will pass NBTHK Hozon Shinsa.
We will submit to NBTHK Shinsa if requested.)
Aoi Art estimation paper : whole Oshigata.