ISmithers

Hello, i just bought this katana from a collector. Now we inspected it and found a button with an anker on it, Japanese text saying "山本" on the tang when we took the handle off. It also has a serial number just above the guard. 120 cm long. We think the previous owner painted the metalwork. Now I would like to know a bit more about the piece I bought (year, something about the owner or swordsmith, value) or maybe it's a replica I don't know.