Kogatana in Shirasaya
Mei(signature) : Kinka Oite Noshu Nagaragawana Fujiwara Kiyonaga Sanroku
Maximal length : 25.3 cm or 9.96 inches
Blade Length : 11.97 cm x 1.27 cm ( 4.71 inches x 0.5 inches)
Jidai(era): Edo period Genroku era.
Special feature : Kiyonaga made sword and also Kogatana many pieces.
I sometimes find this kind of kogatana.
This item is very healthy and nice work.
AOI estimation paper