The Beja consist of 5 tribes, the Hadendoa and Beni-Amer being among them. They are split between the countries of Sudan, Eritrea and north west Ethiopia.
They are descendants of the ancient Egyptians who were expelled from Egypt by the invading Nubians in the 8th century BC).
It would have been used for the removal of thorns and as a bodkin.
14 ½" in length x 1 ¼" in width.