AF21668-(Kikumon) Kaminariyoke Nihon Kaji Sosho Iga Kami Kinmichi

Kogatana:
Mei (signature): (Kikumon) Kaminariyoke Nihon Kaji Sosho Iga Kami Kinmichi
雷除日本鍛冶宗匠伊賀守藤原金道

Maximum Length: 20.7 cm or 8.1 inches
Blade Length: 12.7 cm or 5.0 inches
width of Hamachi: 1.2 cm or 0.5 inches
Jidai(era): Edo period

Special feature: This was made to wish for protection from thunder.
Hamon is difficult to distinguish due to rust.

AOI estimation paper
In Kiri box.