Sayagaki: Shinpo Kenjyo Hounou Houbututen No 16 of 20 swords treasure sword the length is 2shaku 4 sun 9bu ari no.
The blade was polished.
Blade length : 75.6 cm or 29.76 inches.
Sori : 1.4 cm or 0.55 inches.
Width at the hamachi : 2.79 cm or 1.09 inches.
Kasane : 0.67 cm or 0.26 inches.
Era : Showa period.
Shape : The blade is healthy nice looking shape, Kogarasumaru katana.
Jitetsu :Muji style.
Hamon : Can't see the hamon well.
Special feature : I think this sword was made during war time.
According to the sayagaki, the swords were made 20 pieces.
The sword was number 16th of these 20 swords.
The style is unique and rare item.
Kogarasumaru was said that the blade was treasure sword for Heike family.
So at the end of Edo period and Meiji,Taisho and Showa many swordsmith tried to make this kind of unusual shaped sword.