Saber says Wakizashi to blade shinogi zukuri, hamon unreadable, nakago to a mekugi ana, unsigned. Fuchi-kashira (kabuto gane type) and iron tsuba, sheath with ichizuki. Japan from the 16th-17th centuries.
This saber is in good general condition, it is in its juice, as in the photos.
To report: blackened blade, accidents and shortages in the koshirae, lack kogatana (small knife), wear of time, look good pictures.