AS23898 Katana:Nagamitsu

Katana in Shirasaya

Signature: Nagamitsu 長光

Blade length: 65.9cm (25.94in)
Sori: 2.0cm (0.79in)
Mekugi: 1
Width at the hamachi: 3.35cm (1.32in)
Width at the Kissaki: 2.29cm (0.90in)
thickness: 0.74cm (0.29in)
Era: in wartime
Shape: wide and thick stout blade
Jigane: fine Ko-itame hada
Hamon: Nie base Suguha and Notare with Koashi.Boshi is rounded.

Special feature:
Chounsai Emura, the warden of Okayama Prison, opened a Japanese sword smithy in the prison with the help of Ichiryushi Nagamitsu, a swordsmith who had been serving an army warrant, and had inmates make military swords.
Most Showa-era swords were poorly polished by machines, making them inferior in appearance compared to Yasukuni swords.
However, this piece is a serious work, and with proper polishing, it could be remarkably improved.

Aoi Art estimation paper : whole Oshigata