This one certainly looks old, but with newer elements such as the thing that fixes the rings to the scabbard, is clearly newer than the other brass fittings. The reason I say this is because as of late, antiques dealers in damascus are increasingly meddling with any old piece they obtain, trying to restore it, and ending with a completely new scabbard or hilt and destroying the older valuable one. As for the arrangement of the rings, again, this is not an arabian arrangement, this is a typical arab arrangement from your own collection:
http://www.vikingsword.com/vb/showth...highlight=frog