Iron projectile point. The head (left) is asymmetrical, perhaps the result of its base being broken. The intact side of the base is shouldered. Two small barbs protrude from opposite sides of the point's long tang (right). To make an arrow, the tang would have been inserted into a shaft made of bamboo, reed or lightweight wood. This point was found in an area (mound 6) that archaeologists interpret as a metallurgical workshop. The artifact has been corroded by rusting. Scale in cm. Length: 10.1 cm. Weight: 8.9 g. Site Ngre Kataa. 4 June, 2009.