Triangular-headed iron projectile point (SF 09-033) with a slightly squared base (left ) and a short tang (right). To make an arrow (snini in Nafaanra), the tang was inserted into a straight shaft made of bamboo, reed or lightweight wood to which it was hafted. This artifact was found close to several anvil/grinding stones in an area (mound 6) that archaeologists interpret as a metallurgical workshop. The projectile point shows signs of corrosion by rusting. Scale in cm. Length: 8.1 cm. Weight: 9.3 g. Site Ngre Kataa. 30 May 2009.