Hi Guys -
I am pretty new here and have been learning a lot, but I have a ways to go. I have been recently offered a katana by a long distance acquaintance. He is a militaria dealer/collector, but his specialty is NOT nihonto, nor kitanas from WW2. He collects them on the side. So, he offered me this shin-gunto and claims that the blade is old ... possibly 1600s. He is an honest person, but of course that doesn't mean his assessment is correct. He emailed me several photos. I am struggling with the translation. I am thinking it may be Sukenao, but that's all I can figure out from the attached pictures ...and I believe there were at LEAST two smiths by that name (at least) - - AND again, I am not sure I am correct on what I "think" I figured out on my own So, I am asking for help ... opinions on if this sword is legitimate, and what period it was crafted?
I greatly appreciate any comments, wisdom, advice and guidance on this matter! Thank you,