Koto End of Muromachi period (Eiroku 13-/1570-) OwariLength of cutting edge 30.2cm Curvature 0.2cm Width of base 27.3mm Thickness of base 5.0mm
NBTHK(Tokubetsu Hozon) certificate
with) Silver Notches scabbard Chisa-katana style Tanto Koshirae