Crayonbone

you were absolutely correct. There is one small stamp.

I don't remember seeing any marks on the other side other than the writing

Being so close I would love to have you look it over and give your opinion of it maybe try and answer a few questions

I just bought my first Japanese ww2 Katana. Well traded for it actually. I know almost nothing about it other than what the guy told me. I included a pic of the blade tip because the grain pattern looks unusual. He told me the ring on the throat of the scabbard is wrong. Should be a darker colored one. Said it was probably put on in the field. He also told me he believes the Smith was yoshitada. Any help would be greatly appreciated.