Shinto early Edo period (Kan'ei era / circa 1624-) YamashiroLength of cutting edge 52.7cm Curvature 0.6cm Width of base 29.5mm Width of Yokote 19.5mm Thickness of base 6.5mm
NBTHK(Hozon) certificate
NBTHK(Tokubetsu Kicho) certificate
NTHK(Shoshin) certificate