Koto end of Muromachi period (Tensho 4/1576) BizenLength of cutting edge 21.6cm Inward curvature Width of base 21.8mm Thickness of base 5.5mm
NBTHK(HOZON) certificateNTHK(SHOSHIN) certificate
with) Negoro vermilion-lacquered Toppei style scabbard Aikuchi Koshirae
NBTHK(Hozon Tosogu)certificate
Koto End of Muromachi period (Tenbun era/circa 1532-) MinoLength of cutting edge 29.4cm Curvature 0.2cm Width of base 25.4mm Thickness of base 5.4mm
NBTHK(Hozon) certificate
Shin-shin-to End of Edo period (Ansei era/circa 1854 -) DewaLength of cutting edge 21.6cm No curvature Width of base 26.4mm Thickness of base 8.0mm
with) Black lacquered Aikuchi-style Tanto Koshirae
Koto Kamakura period (Shouou era circa 1288)Length of cutting edge 25.3cm Inward curvature Width of base 22.0mm Thickness of base 5.7mm Length of tang 96.0mm
NBTHK(The 32th 1985 JUYO TOKEN)
with) Brown Urumi lacquered Inro-notches scabbard Higo style Tanto Koshirae
