Kamakura period (about 800 years ago) YamatoLength of cutting edge20.3cm No curve Width of Base16.7mm Thickness of base5.2mm Whole length29.7mmEntire length of fitting Koshirae : 37cm
NBTHK(Hozon) certificate
with)Vermillion Urumi-nuri lacquered scabbard Dragon Aikuchi fitting
Koto end Muromachi period (Eiroku 12th/1569) Houki Length of cutting edge 25.1cm Curvature 0.1cm Width of base 24.2mm Thickness of base 6.0mm
with)Black Stone-surface Ishimeji scabbard Aikuchi style Koshirae
Shin-shinto end Edo period (Man'en 1st/1860) Higo Length of cutting edge 27.4cm Curvature 0.3cm Width of base 25.8mm Thickness of base 6.8mm
NBTHK(Tokubetsu Hozon)certificate
