Sudanese Manding short sword and dagger?

[RobertGuy]

To add to my recent post of a haladie dagger http://www.vikingsword.com/vb/showthread.php?t=20788
these are items 2 and 3 of the four piece job lot I got at auction recently.
Catalogue description:
Sudanese short sword. Plain blade. Leather covered grip. Contained in its leather and fur covered scabbard...Matching Sudanese knife.
Stats:
Short Sword
Weight: 10.9oz (0.31kg)
Length overall: 21.25'' (54cm) Blade: 16.5'' (42cm)
Profile taper: 1.12'' (28.5mm) at ricasso, 1.1'' (25.1mm) mid blade, 0.96'' (24.4 mm) 2inches from tip.
Distal taper 0.14'' (3.6mm) at ricasso, 0.14'' (3.6mm) at mid blade,. 0.11'' (2.9mm) 2 inches from tip.

Knife
Weight: 2.8oz (0.08kg)
Length overall: 10.75'' (27.5cm) Blade: 6'' (15cm)
Profile taper: 0.89'' (22.7mm) at ricasso, 0.9'' (22.8mm) mid blade, 0.71'' (18 mm) 2inches from tip.
Distal taper 0.11'' (3mm) at ricasso, 0.09'' 2.4mm) at mid blade,. 0.08'' (2.1mm) 2 inches from tip.

Blades on both were covered in rust and had a very rough finish after cleaning. Not sure if this was due to the rust or if the initial forging was rough. Prominent metal tangs protruding from the grips. Not sure if these are proto skull crushers or if they were originally covered by leather pommels or end caps. The large white areas on the sword scabbard were raw hide with the hair still on but 90% of the hair has gone. Distinctive raffia work on hilt and scabbard, which I have seen on items labelled as Manding.
Can anyone here confirm the origin? Is there any way to reliably date these items? As usual any information greatfully received.