Hello all! first post. I’ve been hanging out on a few Facebook pages for Nihonto and get great advice. Ray singer has been particularly helpful. Recently, I’ve gotten a interesting sword from a local to me auction. I’ve gotten opinions of everything from 1500s to oil quenched showato. I’m happy with whatever it is but being a newbie… I’m trying to understand what I have. I bought several books from Martin sesko but I’m still learning. There are no stamps anywhere on the blade whatsoever. Like I said you may have seen this on FB, but I’m posting here in hopes the images upload in higher quality. Thank you for your time.