English: Plate 12 -- The bolo: Combination piercing and chopping weapons; agricultural knives and jungle tools. No. 1. Curved blade of steel with flattened surface on inner side and median ridge on beveled outer surface; octagonal hardwood handle. Tagalog, central Luzon. 2. Bolo with steel blade point broken off. Handle consists of elaborately carved carabao horn. Luzon. 3. Broad-backed steel blade provided with convex cutting edge; handle completely shod with figured brass. Bagobo, southern Mindanao. 4. Bolo having chased iron blade inlaid with soft metal; beautifully carved carabao-horn handle. Cebu, Visayan Islands. 5. Boy's barong; small elliptic steel blade; carved hardwood handle ferruled with silver bands and braided silver cord. Taken in 1913 at Mount Talipao, Mindanao. 6. Steel blade, "pirah" acutely pointed and convexly curved; provided with sharp downward curve near handle similar to the Malayan parang-latok; hardwood handle equipped with symbolic recurved horns and spike. Cebu, Visayan Islands. 7. Concavo-convex grooved steel blade; brass-shod handle and guard spike. Bagobo, southern Mindanao. 8. Kampilan-bolo type; chain ornament on hardwood pommel. Bagobo, southeastern Mindanao. 9. Grotesque totemic or wyang carving on wood handle; circular guard of wood; old type of Malay weapon. Panay, Visayan Islands. 10. Pirah. Cutting edge of blade has sweeping convex curve; heavy, concave blade back; truncated slope at point; handle fashioned of carabao horn and provided with long extension arm support. Moro, Basilan Island.

Other images on Filipino weapons by the same uploader are here:

(a) Luzon weapons; (b) Visayan weapons; (c) Moro weapons; and (d) Lumad (non-Moro Mindanao) weapons