This oversize spearhead is totally useless as a weapon, of course. It appears in sizes from 40 to 200 centimeters; ours measures 168 centimeters. The material is soft and thin. Only a cast middle ridge gives the blade some stability. Such spearheads are called liganda and produced by the Turumba, a people living in the Congo. Some of the Turumba's neighboring tribes used liganda as well. It served as currency until the early 20th century, especially to pay the bride price and for buying canoes and slaves. In the region of the upper Lomami river, 30 liganda would buy a male slave around 1900; for a slave girl one had to pay between 40 and 100 liganda.