Shinto Early Edo period(Keicho/early 17th C.) Echizen provinceLength of cutting edge25.6cm Length of Nakago32.8cm Whole length58.4mm Whole width21.9mm
Shinto middle of Edo period(Genroku/CIRCA1688)Length of cutting edge 57.2cm Width of base 28.1mm Thickness of base 17.5mm Length of tang 45.2cm