Very odd Sudanese sword for discussion

[Mefidk]

This is the highest res image I can upload directly.
Very interesting sword. The blade seems to have dimensions and shape typical of the kaskara trade blades, but of course the inscription is very interesting. The highly decorated and oddly styled hilt is extremely unusual to say the least. I'm having a little difficulty fitting the inscription and the rich hilt together since richly decorated swords are not a general feature of that era as far as I'm aware - but pretty much anything is possible if it was a gift.
Shame we cannot see the other side. I asked Christies for more pictures, but they never came - maybe they knew I did not have 15,000 GBP to spend