Brian

No, definitely not.

Some very nice work there!

Knife collectors will tell you that few of us keep expensive knives in their leather sheaths. Often the steel handles it well, but the brass fittings can suffer. I'm with Ed, you won't know what your leather supplier used, best to be safe.

Brilliant detective work as always Moriyama san

I have been advised of the passing of Brian Klingbile (Username Winchester) by his wife. She had this to say: "This is Brian's wife, Sarah.....Unfortunately, Brian has passed away. Thank you so much for providing such a wonderful forum. Brian was new to collecting, and was excited not only to connect with others with similar passions, but to have access to learning opportunities for his new passion. What you have here is amazing, and I wanted to let you know that you make a positive impact on people's lives even if you don't hear this on a regular basis. Thank you for being so welcoming to Brian. I have attached Brian's obituary in case you or anyone else was interested in it. I don't know who Brian all connected with (or to what level), so I will leave announcing or contacting others up to you. I am comfortable with this information being shared. https://www.zimmerfuneralhome.com/obituaries/brian-klingbile " Our condolences go out to those who knew him, may he RIP.

Leather is the easiest to fake, seen sooo many fake swords with what looks like 80 year old leather. Wet molded and aged a bit, and it looks ancient. I suspect they have people who do just that all day. Some fake combat covers look better than the real thing. I'm guessing labour and materials are so cheap there, that it means nothing to do a half decent job. Either way, your next one will be better. But it's vital to look at some real ones, then the fakes become very very obvious.

AI is full of shit. That's the bottom line. It's clearly a repro, and that was fairly clear without the nakago. We are very far from a world where AI can give you an accurate assessment of swords.

It is, as far as I know. I'll message you contact details of the owner.

Phew. That is about as basic as it gets....wow. Interesting sear arrangement though, first homemade pistol I've seen with that through-sear like that. Would work well as a percussion piece.

Yeah, It's authentic. Just out of polish and of mediocre quality. But likely a good pickup if the hamon is still there.

He does appear to be saying "woe is me"

I don't think there is a way, unfortunately. Maybe on the new software.

Yeah, these were definitely not acquired in Japan, as they would have been very illegal there.

It's interesting that the tsuba was signed after the sekigane was added. This means the tsuba was originally made with it installed, for later fitting by the owner. We tend to think of tsuba being made to fit after they were purchased but this shows (if shoshin) that they could be made with that already installed for fitting to your blade. hmm

Looks like a WW2 Kai Gunto tsuba, part of a set of various numbered fittings used on the more mass produced Naval swords in WW2. How it ended up in CT I have no idea. That is a very weird one.