Mandau,Jimpul or Nyabor?

[Mytribalworld]

In my collection I have a kind of mandau with Nyabor like blade.
I don't know how to call it,the blade has some of the style of a Nyabor with some strange crowits,the handle isn't like a parang ilang handle but also not like a nyabor handle however it has some in common.
the balde is much smaller and lither than a nyabor. I think the item is a very old piece,maybe some of the members has something like this?