Tenegre? & Parang Nabur?

[t_c]

Thanks for all the info so far Maurice.
Here is the picture of the handle profile I was referring to earlier. I've annotated it with my interpretation - it seemed like a representation of some animal/deity/other... It's definitely abstract, but it struck me that there was something more to the carving than simple ornate grooves.
I'm hoping someone has some deeper insights into the culture that produced it.