Freddy, I certainly like your friends axe and can see why you want it in your collection.
Tim, I see what you mean about influences, the axe you posted is nice, would certainly be welcome in my house

This axe also reinforces my comment about the axe head /spear head being formed in one piece.
Assuming the axe that started the thread is genuinely African, then it must be ceremonial.....which suggests to me there must be more.... if uncommon, then a 'high status' ceremonial piece. But, having said that, I would expect it to be more ornate, perhaps with symbolic designs and more materials used such as brass, ivory etc