My first dharb for comment

[Andrew]

Ouch. That sure has seen too much grinding/sanding. Personally, since the blade has been abused so, I would try to polish it out.

What makes you think the blade has been folded?

The blade is typically Thai in profile and, perhaps, our new members Titus and PUFF can confirm this. The handle is a bit unusual in my experience, and I like it. Interesting sword, congratulations.