Mei (signature) : Nagamine （Kaou）
Length : 21.9cm x 1.07cm ( 8.6inches x 0.42inches)
Jidai(era) :Middle Edo period.
Special feature: Silver base with warrior on horse is engraved. Nagamine, also known as Jirou Saburou, makes many fuchigashira.
Therefore it is rare to see Wari kogai piece.
AOI estimation paper
In Kiri box.