Ordering number: 19609
Katana in Shirasaya(NBTHK Hozon Paper)
Signature: Bishu Osafune Kiyomitsu
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to jyo jyo saku ranking.
The blade was polished.
Habaki : Copper single Habaki with Kizami pattern.
Blade length : 68.79 cm or 27.08 inches.
Sori : 2.18 cm or 0.85 inches.
Mekugi : 1
Width at the hamachi : 3.03 cm or 1.19 inches.
Width at the Kissaki : 2.08 cm or 0.81 inches.
Kasane : 0.71 cm or 0.27 inches.
Weight of the blade: 770 grams
Era: Late Muromachi period
Shape: Ubu-Nakago with one mekugi hole.
The blade is little wide and thick with deep sori and long kissaki.
It is similar to swords in Kamakura period.
Jigane: Mokume hada well grained with jinie attach. There are chikei and clear utsuri.
Hamon: Niedeki suguha with small ashi and yo. Boshi turns back roundly.
Special Feature : Bishu Osafune Kiyomitsu produced the swords the most in Bizen province in the end of the Muromachi perid.
Bishu Osafune Sukesada also produced the swords a many as Kiyomitsu but Kiyomitsu’s swords are in better quality than Sukesada’s.
The Boshi is Kaki-Boshi, but the Hamon is really nice and the Mekugi-ana is just one, and the shape looks good.
NBTHK Hozon Token
Aoi Art estimation paper: whole Oshigata.