Katana in Shirasaya　　(NBTHK Juyo Token)
Signature: Mumei (Sekisyu Naotsuna)

The blade was polished .
Blade length : 71.6 cm or 28.1 inches.
Sori : 2.8 cm or 1.10 inches.
Mekugi:2 Mekugianas are opened , and 1 Mekugiana is blocked
Width at the hamachi : 3.3cm or 1.29 inches.
Wide at the Kissaki : 2.4 cm or 0.94 inches.
Kasane : 0.7 cm or 0.27 inches.
Era : Nanbokucho period.
Shape : The blade is wide and thick deep Sori nice looking healthy blade.
Jitetsu :Itame hada well grained with Jinie attach and also Chikei work blackish jigane.
Hamon : Niedeki Gunome midare and in Ha, there are many Sunagashi and Kinsuji scvatter.

Special feature : The founder of the Naptsuna was a student of the Masamune which is called Masamune 10 Tetsu.
He was called as one of the menber.
This blade is quite healthy with blackish Gunome midare Sosyu style.
The blade is healthy without Kizu and wonderful Jigane and Hamon.

NBTHK Juyo Token; Aoi Art estimatin paper : whole Oshigata.

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Price : \ 3,300,000- or US$ 33,000.00- (including shipping charge and 100% insurance fee)