Mei (signature) : mumei(Unsigned)
Length : 7.94cm x 7.89cm ( 3.13inches x 3.1inches)
Thickness of rim: 0.36cm( 0.14inches)
Jidai(era) :Edo Period
Special feature:Round shape iron tsuba with Omodaka（a plant called arrowhead) is engraved in openwork. It is thin and sfot line iron motif.
AOI estimation paper
In Kiri box.