African Sabre, West Africa....Ivory Coast???

[katana]

Finally .....the sword has arrived. Nice solid feel, nice balance and relatively 'heavy'. Some deep pitting and nice patination on the blade. I can't find any markings at all.
Taken a number of measurements.... hoping that someone may be able to identify the European (?) blade. Thankyou

The spine (back) is 4mm thick, then at approx,18cms before the tip it thins to approx 1mm.
It has a broad fuller, both sides (18mm wide) and is 38cm long which follows the curve of the blade. Because the photos do not show this clearly I have applied tape to show position.
The blade is 48mm wide at handle, slightly tapering to 42mm approx. 15cms before point, then tapers again to 38mm just before point.
The blade measures 70.5cm, following the curve (of the blade), handle is 15cms long.