Help With Spear Indentification....Burmese? Thai? Malay? Indonesian?

[VVV]

Nice,

Here is the Dayak scroll motif I had in mind (lower part, from Nieuwenhuis' Quer Durch Borneo).
And below is one of my Borneo spears that also has a resembling motif like yours.
Yours seem to be a variation of the half tumpal (full tumpal is the center motif at the right, 3/12 if using the clock system)

Michael