Koto End of Muromachi period (Tensho era/circa 1573-) MinoLength of cutting edge 74.0cm Curvature 1.8cm Width of base 32.5mm Thickness of base 6.7mm
NBTHK(Tokubetsu Hozon) certificateReported/printed in the book of [Mino-to Oshigata Shu]