Tsuba: (NBTHK Hozon Paper) Mei (signature) : mumei(Unsigned) (Edo Akao) Length : 6.72cm x 6.23cm ( 2.65inches x 2.45inches) Thickness of rim: 0.47cm ( 0.19inches) Jidai(era) :Edo Period Special feature:On shakudo nanakoji plate, Unryu is engraved in open work and ...