Koto Early Muromachi period (Kansho era / circa 1460-) BizenLength of cutting edge : 58.4cm Curvature : 1.6cm Width of base : 29.4mm Width of Yokote : 19.5mm Thickness of base : 8.1mm
NBTHK(Tokubetsu Hozon) certificateNBTHK(Tokubetsu Kicho) certificate
with) Black Roiyo-style lacquered scabbard Koshirae
Koto End of Muromachi period (Tenbun era / circa 1532-) MinoLength of cutting edge 35.2cm Curvature 0.7cm Width of base 29.1mm Thickness of base 5.8mm
NBTHK(Hozon) certificate
with) Palm leaf Blue pearl of inlay scabbard Chisa-katana style Koshirae
Shinto early Edo period (Kan'ei era / circa 1624-) SettsuLength of cutting edge 48.2cm Curvature 1.2cm Width of base 29.7mm Width of Yokote 20.5mm Thickness of base 6.2mm
NBTHK(Tokubetsu Hozon) certificate
with) Black wrinkled Leather crust lacquered scabbard Wakizashi Koshirae
Shin-shin-to the latter half Edo period (Bunsei 11/1828) HarimaLength of cutting edge 32.7cm Curvature 0.6cm Width of base 29.6mm Thickness of base 6.2mm
with) Black Roiro lacquered scabbard Chi'sa katana style Koshirae
Shin-shin-to End of Edo period (Kaei 7/1854) BushuLength of cutting edge 38.8cm Curvature 0.7cm Width of base 38.9mm Thickness of base 6.0mm
