19th century or earlier, comprising a blade with wavy notare temper line; the habaki appears to be silver over copper, 20 3/8 in. L, 1 1/8 in. D at the hilt, the tang inscribed on both sides, 6 in. L. The handle with wired-inlaid iron mounts, 5 7/8 in. L. The tsuba if forged iron, with copper used to resize the blade opening. Simple scabbard with black lacquer finish, 21 3/4 in. L

Areas of spidery oxidation on blade