The blade was polished
Blade length : 56.2cm or 22.13inches.
Sori : 1.3cm or 0.51inches.
Width at the hamachi : 3.15cm or 1.24inches.
Width at the Kissaki : 1.98cm or 0.78inches.
Kasane : 0.66cm or 0.26inches.
Era :Edo Jyoukyou period(1684-1687)
Shape : It is width and thick blade. there are some sori. It is healthy blade.
Jitetsu :Itame hada well grained with jinie attached
Hamon : NIe base suguha with koashi seen. The boshi is round ended.
Special feature : Shinano Daijyo Fujiwara Tadakuni is said to be the student of Dewadaijyou Kunimichi. This piece is second generation piece. It is tight suguha base with some koashi seen. It is fine piece.
Tsuba :Iron base with tree peony engraved and inlayed with gold.
Fuchikashira :Shakudou nanakoji base with autumn bug engraved.
Saya : Black ishimeji saya
Menuki : Flower design is engraved.
Kozuka : It is simple kozuka
NBTHK Tokubetsu Kicho Paper
Aoi Art estimation paper : whole Oshigata.