Koto End of Muromachi period (Tenbun era / circa 1532-) Mino Length of cutting edge 29.4cm Curvature 0.1cm Width of base 27.5mm Thickness of base 5.8mm
NBTHK(Hozon) certificate
Koto End of Muromachi period (Tensho-Bunroku era / circa 1573-95) Sagami Length of cutting edge 31.1cm Curvature 0.2cm Width of base 29.1mm Thickness of base 5.7mm
NBTHK(Tokubetsu Hozon)
with)Black lacquered polished layskin scabbard Chisa-katana Koshirae