Phiilipine blade, but what kind?

[Protector]

So, another mystery sword/bolo/chopper for your consideration. It is obviously Filipino, to my eyes anyway, but I have not seen anything similar. Heavy duty blade, with an even distal taper to the tip. Buffalo horn grips, with seven facets and brass ferrules and black leather sheath. The store owner had no idea what it is or where it came from. Do any of our illustrious historians here recognize it?