Koto End of Muromachi period (Genki-Tensho era/1570-90) OwariLength of cutting edge 41.8cm Curvature 1.0cm Width of base 32.7mm Thickness of base6.5mm
NBTHK(Tokubetsu Hozon) certificate
Shinto Early Edo period (around Enpo era/1673-) Settsu Length of cutting edge 58.7cm Curvature 1.6cm Width of base 33.5mm Width of Yokote 22.5mm Thickness of base 7.5mm
with) Ivy Arabesque Design Black Stone surface lacquered scabbard Han-Tachi-style Koshirae
Koto End of Muromachi period(Eiroku era/1558-) Mino Length of cutting edge 39.2cm Curvature 0.7cm Width of base 32.2mm Thickness of base 5.7mm
NBTHK(Hozon) certificate
with)Pipe stripe Vermillion Urumi-nuri lacquered scabbard Chisa-katana Koshirae
Shinto Early Edo period (Kanbun era /circa 1662 - ) Yamashiro/Echizen Length of cutting edge46.8cm Curvature1.4cm Width of base32.6mm Thickness of base7.3mm Width of Yokote23.1mm
with)Black lacaured Natane rapeseed pattern scabbard Wakizashi Koshirae