Thank you Ariel and Jim. Now I am going to add the better photos accordingly, beginning with the European blade. The "Transylvanian knot" Jim mentions is important I think, for there are some carvings that look like inscription, but hardly I can interpret these, and they do not like any script I know. Maybe my ignorance.
Here goes the European blade first. I thought it would be better if I added a drawing of the figures, to have a better idea, for the origin or a more precise dating. I also add a photo of one of the silver fittings on the belt, possibly old Circassian style.