Tsuba: Mei (signature) : mumei(Unsigned)(Higo) Length : 8.22cm x 7.88cm ( 3.24inches x 3.04inches) Thickness of rim: 0.23cm ( 0.09inches) Jidai(era) :Edo Period Special feature: On round edge iron Higo tsuba, spool shape is engraved at the center. In the spool ...