THE SHAPE OF THE SPEAR BLADES DO REMIND ME OF THE NAGA SPEARS OF ASSAM OR SOME OF THE SPEAR BLADES FROM BORNEO. WOVEN FIBER OFTEN LOOKS THE SAME THE WORLD OVER AND DOES REMIND ME OF SOUTH AMERICAN WORK AS WELL AS SOME DAYAK WORK I HAVE SEEN. THE DAYAK SPEAR BLADES ARE OFTEN QUITE A BIT LARGER THAN THE NAGA SPEAR BLADES. NICE SPEARS WHERE EVER THEY ARE FROM.