Borneo Parang Nabur or Visayan Bolo?

[VVV]

Hi Kai and Ron,

I only do blackbelt Sudoku boards so that's why I would like to give it a try.
Riddles are supposed to be solved.

So far two forum members has mailed me that they think the last one could be from Bicol.
The only thing I am sure on is that it isn't from Borneo, an area where I feel more comfortable having an opinion about the different sword variations. And that none of the bolos in this thread are Malay Parang Nabur.

On the rhino hilt I don't have the bolo around at the moment.
But Fred, who most of you probably know, described it as rhino when he sold it to me.
I assume he has some experience in evaluating this?
But I also found it strange and will have a closer look at it later this week.
I suggest we ignore that part and focus on the hilt and blade.
Does anyone have any bolo from Bicol that resembles this one?

Michael