Tom,
Not Tuareg. This diamond cross section does not turn up in takouba really. Extremely thick tang.
Solid, cast hilt. Two piece design, guard and then single piece grip and pommel.
A.alnakkas,
Hilt should be contemporary with the blade. The cleaning on this is going to take a while. Decades of probably sitting in the roof of a hut hasn't been kind.
Keep guessing folks but forget the normal tribal associations of takouba.
I'll probably say what it actually is later today if there's not much more interest in guessing.
Cheers,
Iain