Thanks for the reply and images.

That is a typical "Samburu Spear". A javelin style of throwing spear, a thin leaf shaped spear head, slim pointed end shafts and long cast iron "spike" at the base.

I have seen these, plus the Massai lances, which are squarer long bladed lances. And also a hunting spear, what we might think of as a spear. long wooden shaft, and leaf shaped blade, shorter than the Samburu or Massai spears.

A nice artefact for your wall. Thanks for sharing.