My apologies for the delay in replying. I have been laid low all week with what turned out to be Pneumonia. New experience that.
Signs of use? It was not pristine when I got it but did not need a major cleaning, just some TLC. The edge was fairly clean and just needed some fine tuning to take a tremendous edge. So not really a tourist piece per se.
I choose not to etch any of my collection as I prefer to cut with them on occasion anyway and prefer the unetched look.
Nope, it's not a double edged tip,

something else.
My first answer was going to be Maranao? Because it is.
But the first reason would be the fabulous Okir carvings on the scabbard