Koto Nanbokucho period (Ouan era/circa 1368) Mino Length of cutting edge 63.7cm Curvature 1.5cm Width of base 30.0mm Width of Yokote 22.6mm Thickness of base6.4mm
NBTHK(Tokubetsu Hozon) certificate
Hon'ami Kōson Origami certificate
Shinto Early Edo Period (Gen'na 7 - Kan'ei 11 / 1621-34) Owari Length of cutting edge 75.7cm Curvature 1.7cm Width of base 31.0mm Width of Yokote 21.7mm Thickness of base 7.5mm
Shinto early Edo period (circa Gen'na 5th/1619-) Hizen Length of cutting edge 74.4cm Curvature 1.4cm Width of base 31.6mm Width of Yokote 22.7mm Thickness of base 7.3mm
reference only
Koto Early Muromachi period (Ouei era / circa 1394-) Bizen Length of cutting edge 60.1cm Curvature 1.8cm Width of base 25.2mm Width of Yokote 15.3mm Thickness of base 5.0mm
NBTHK (Tokubetsu Hozon) certificate
with) Yoshino cherry tree Tin pearl of inlay Nashiji sprinkled Gold/Silver foils raised Taka-Makie work Itomaki Tachi Koshirae
Shinto advance early Edo period (Shouo era to Meireki 3rd / 1644-57) Yamashiro Length of cutting edge 71.5cm Curvature 1.2cm Width of base 31.2mm Thickness of base 6.8mm Width of Yokote 18.2mm
NBTHK(Tokubetsu Hozon) certificate for Katana
with)Black Ro-iro lacquered scabbard Uchikatana Koshirae
NBTHK(Tokubetsu Kicho) certificate for Tsuba
Koto End of Kamakura period (Shochu era/circa 1324-) Higo Length of cutting edge69.7cm Curvature1.5cm Width of base26.8mm Width of Yokote16.7mm Thickness of base6.4mm
with)Black Ro-ro lacquered Spiral pattern scabbard Uchikatana Koshirae
