Koto End of Muromachi period (Tensho era / circa 1573-) MinoLength of cutting edge 31.2cm Curvature 0.4cm Width of base 29.9mm Thickness of base 5.5mm
NBTHK(Tokubetsdu Hozon) certificate
with)Black Ro-iro lacquered scabbard Aikuchi-style Tanto Koshirae
Koto Middle of Muromachi period (Meiou era/1492-) SagamiLength of cutting edge 20.9cm Curvature 0.2cm Width of base 21.5mm Thickness of base 5.7mm
NBTHK(Hozon Token) certificate
with) Blackwood scabbard Tanto Koshirae
NBTHK(Hozon Tosogu) certificate
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
