Katana in Koshirae. (NBTHK Hozon paper)
Signature : Mumei (unsigned) attributed as Owariseki school.
(We divide 4 sections for each sword as Saijo saku, Jojo saku, Jo saku and regular saku)
This sword belongs to Jo saku ranking.
The blade is polished by high ranking polisher.
Habaki : Gold foiled double Habaki.
Blade length : 73.3 cm or 28.9 inches.
Sori : 2.3 cm or 0.91 inches.
Mekugi : 1
Width at the Hamachi : 3.14 cm or 1.24 inches.
Width at the Kissaki : 2.29 cm or 0.90 inches.
Kasane : 0.67 cm or 0.26 inches.
Era : Late Muromachi period to early Edo period.
Shape : The blade is wide and thick with deep curve with Ookissaki and Bo-hi engraved both sides of the blade which is beautiful nice looking shape.
Jigane : Itame-hada well grained with Jinie attach and Chikei work nice beautiful texture.
Hamon : Niedeki Gunome-midare and in Hamon, Sunagashi work.
Boshi is Midarekomi Togari style.
Special feature : Owari Seki school are the groups of swordsmith moved from Mino to Owari province at late Muromachi period to early Edo period.
Long ages of Sengoku war were becomming to end at that time and Owari Seki had to move for continuing their work.
Their style are mixture of Mino and Owari blade.
This blade looks somewhat like Nobutaka.
The blade is healthy and well polished without any Kizu or flaw.
The length is long so not just looking but also suitable for Iai practice.
Tsuba : Pastoral landscape is engraved on oval shape iron Tsuba.
Fuchi-kashira : Flowers are engraved on Shakudo plate with gold color.
Saya : Black Ishimeji style.
Menuki : Lobster is engraved on Shakudo plate.
NBTHK Hozon paper
Aoi Art estimation paper : whole Oshigata.