A friend has this spear in his collection (well actually in a corner of his cellar, but he is sadly not considering to let it go
)
take a look at the dohong in Zonneveld's, the decoration at the base, the way the sides are sharpened only from one side of the blade.
This blade seems very much a spearhead to me, but the dohong in Zonneveld is now a puzzle to me. is it a dagger or a spearhead hilted as a dagger