AS20510-Tanto: Nobukuni 　

Tanto in Shirasaya with Koshirae.(consignment sale)
Signature:　Nobukuni

(We divide 4 sections for each sword as Saijyo saku, Jyo-jyo saku Jyo saku and regular saku)
This sword belongs to Jyo-saku ranking.
The blade was polished.
Habaki:　Wooden Habaki
Blade length: 16.6 cm or 6.53 inches.
Mekugi: 1
Width at the hamachi : 2.1cm or 0.82 inches.
Kasane : 0.5cm or 0.19 inches.
The weight of the sword 70 grams.
Era : Middle of Edo period
Shape : small Tanto with Shobu style.
Jigane : Ko-Itame-Hada well grained. Jinie attached beautiful Jigane.
Hamon : Nie-deki. From Hamachi, Suguha then spacious Gunome-Midare
then Suguha again. The Hamon on both side is same perfectly like
Muramasa blade.

Koshirae :
Tsuba: Iron plate. Karakusa pattern is engraved with color.
Fuchi: Shakudo Nanako plate. A person, hat and gourd are engraved.
Saya1: Black Roiro, Family crest is engraved with brown color
Saya2: Blue shell powder Saya.
Kashira: Higo style.Iron plate. Flowers is engraved with gold color.
Menuki: Shakudo plate, the flower is engraved.

From Aoi Art: This sword has Mei as Nobukuni but we doubt it so we won’t say this is a genuine sword. But the quality is good and
Hamon on both sides is the same at all like Senko school swords.
The shape is Shobu style and Jigane is also good.

Aoi Art estimation paper: Whole Oshigata