Hi Vandoo,
Colin is right, it's a currency spear from the Mbole, who live on the lower course of the river Lomami in DRC (Democratic Republic of the Congo).
This guy with "FULA LANGUAGE AND WAS USED BY THE MASSAI" told you really bullshit. Fula or Fulani are living in West Africa and Masai in East Africa.
Such spear blades are attached (with a short wooden shaft)to a rectangular iron bar . The whole length is normal around 2m or 80". It is a traditional custum that this lance were driven into the ground in front of the home of the bride, to demonstrate that the payment of the dowry had been done by the bridegroom.
Attached a picture of three different Mbole currency spears from my collection.
I hope it helps a little bit.
Regards
Wolf
www.spearcollector.com