Antique Philippine Fishing arrows with detacheable heads

An interesting group of arrows, presumably for fishing. Long cane shafts fitted with socketed iron heads with 2/3 large barbs, the heads detacheable and fixed with fibre cord. The far ends with applied feathered fletchings and deeply cut notches to enable the long arrows to be fired. These arrows are probably from the Philippines. 19th century. 50 inches approximately.Southern Asia-sumpitan-borneo-dart-archery-arrow-beil-bogen-recurved bow compound bow longbow selfbow nock bowstring