Arnie,
Oh no, I am not going to sell this. I had been looking for one of these for years and I stumbled across this one.
Lot's of them show up at Gun shows and auctions but I never trust any of those venues due to hype and the overzealousness of the bidding process and shills.
The sword was leaning up against a wall and the handle was pulled almost completely off, it looked like a crooked walking stick.
Possibly the Estate sale people took a picture of the signature and sent it off to somebody to determine it's value. I've been to enough estate sales to know there are lots of junk items that look old.