Hello All!
In my opinion the hilt is almost certainly Sudanese, the shape and material used is Sudanese, and the use of a dark bone/horn end cap I have seen on several Sudanese daggers. The blade is the nicest I have seen on daggers similer to it. And the etching near the back of the blade where the writing is is very much like the type on my dagger but is a desigen instead of a verse from the Koran. For beoing as old as it is it is in very good condition.
Mark...
Here's a link to a similer one I have but of less quality blade.
http://www.vikingsword.com/vb/showth...light=sudanese