Spear from Nagaland?

[wildwolberine]

I purchased this partial spear from forum member RSword. Described as Filipino in the listing, I thought it might be Naga; now that I can examine it more closely I have less confidence.

Heavy but small and compact leaf shaped blade. There’s some pattern visible but I don’t know if it’s deliberate or from forging process. I can’t honestly tell if the base has a socket or a tang, there’s no seam visible. It’s firmly attached and I couldn’t move it manually. The remaining shaft is dark wood, possibly palm. I don’t see any evidence of a ferrule or binding.

If this is from Philippines or Indonesia? Could anyone share examples of similar spears? Thanks!

48 cm OAL
Tip 25 cm
Blade 18 cm, 3.5 cm wide