Hi Danny,
That is a very good looking lance!!!
I've seen a similar blade in the provenanced Borneo collection of Moller, also with a nice silver sleeve. But then, I never have seen such silverwork on a Borneo lance shaft like yours.....
A lembing Radja from the Bataks looks also different like yours...
Also I never have seen an Aceh lance with this kind of silverwork on the shaft. Aceh lance blades are in general more smoothly forged, and not with that thick pamor on it (if we can call it pamor?)
I wonder if somebody could tell us more about the mark on the blade tip?
But with those silverwork on the shaft, very unexpected.......I incline and will vote for South-Celebes...
Rg,
Maurice