this is one of my Katanas. It looks like Bizen but is probably younger as kindly noted Mr. Massimo.
Lenght. 70 cm
Hamon: Gunome Midare - koshi no hiraita
Moto haba: 3.1 cm
Saki Haba 2,1cm
Saki Kasane: 4.9mm
Bohi on both sides, one side of Nakago has restored bohi end, do to Suriage process, Machi okuri. 2 Mekugi ana. Blade is in Shirasaya and has no Kantei papers. Polish is old but well done. Age points more to Shinto times as to be from Muromachi, but detailed Kantei must be done. Also big thanks to Mr. Massimo for helping me. There is some triangular shade on kissaki point which is only present in picture.