Is it a real sword or a fantasy??

[machinist]

Originally Posted by fernando

Note the scabbard suspension rings on the convex side ... Shaska style ?

This struck me also, looking at some features, especially in the construction of the scabbard I think that this being made by one of the modern Caucasus swordsmiths whose lovely work is often passed on ebay as vintage may be added to the possibilities. Their work is usually traditional but some will make whatever sells.
If it had a lot of niello I would be more certain