What species of Philippine bolo is this?

[Treeslicer]

Originally Posted by ACP

They call it a talibon sir. It is a kind of bolo used in the Eastern Visayas. I have a couple in my collection. The characteristic shape is taken from the curvature of the seahorse's belly. Used mostly for combat, it was modified to be used as a game sword to cut grass and later when the animal was caught, to cut the carcass

Thanks. I was hoping that someone from the area might chime in. I thought that the Visayan talibon usually has a straight or concave back, rather than a convex hump, or Bowie profile, like this one does. Is this a specific variety of talibon?

Edit-- Now having the weapon in hand, it's right side chisel ground, and is differentially hardened.