Wow, nicely done David!
This is a high end piece I would say, from Darfur. It is really unlikely to say what tribes or exact regions at this point, but obviously the Fur are predominant. I will check notes further later tonight, wagons west right now, Fort Stockton Texas in about 350 miles
From what I recall Clauberg was one of the Solingen makers supplying cavalry sabre blades to the U.S. mid 19th century until after Civil War.
It seems I have seen the very decorative pommel in the Kendall notes, and the lozenge pattern of the grip is Darfur, and is found in the Reed article.
All the best,
Jim