Hi Colin,
Very nice find! All from Mandara area in my opinion, judging particularly by the leatherwork.
Takouba is a neat example and I think reasonably old judging by the pommel (close up of that when you can would be great).
Blade is a very odd profile for this region, usually rounded tips, nothing this pointy. I like it and I think it has some good age. The lizard is also very neat. Perhaps someone will recognize the style and be able to pinpoint an ethnic group?
If you ever get sick of the sword put me at the front of the line
Iain