Shinto Early Edo period (Kan'ei era/circa1624-) EchizenLength of cutting edge 53.7cm Curvature 1.6cm Width of base 29.3mm Width of Yokote 20.0mm Thickness of base 6.0mm
NBTHK(Hozon) certificate
Shirasaya (Sayagaki written by Dr. Sato kanzan in 1974)