THERE ARE TWO SPEARS I HAVE PICTURES OF THAT RESEMBLE THIS FORM OF BARBED SPEAR A LITTLE. NO DOUBT THERE ARE OTHER SIMULAR EXAMPLES FROM VARIOUS OTHER PLACES.
THE SINGLE SPEAR WITH STEEL TIP IS IDENTIFIED AS ,ENGGANO ISLAND OFF OF SUMATRA.
THE SECOND POSSIBILITY IS IN A GROUP OF SPEARS SAID TO BE FROM LUZON, PHILIPPINES I DON'T KNOW IF THE TIP IS WOOD OR METAL.
NEITHER OF YOUR SPEARS STRIKE ME AS MADE FOR TOURISTS. I LIKE THEM BOTH.