Label TextEach man in the Sepik River Region owns a dagger made of bone, used for fighting, ritual, and prestige display. The material itself represents supernatural power and strength, making these knives valuable. Their shafts are decorated with engraved, incised and sometimes relief carved designs of geometric symbols or birds. Frequently, as with this example, the presence of ancestor figures adds power to the dagger and its owner. Some of these daggers are made from a human femur, but most are fabricated from the tibia of a cassowary, a species of large flightless bird.