They call this bronze pendant "bateba dunoni", and it is from southwestern Burkina Faso. There is a pervasive fear of sorcery in the cultures of his area. Among the Lobi these are carried or worn as a defense against witchcraft.
These figures were hung around the necks of small children. As 'tutelary spirit amulets' - we would call them 'guardian angels.
Length: 3 1/2" x 1" width and depth.