A Senefelder - I would be grateful for that.
I decided to go through the photos I had saved and picked a few with some resemblances to my sword. The first comes from Stockholm museum and pictures XVII cent. swords for cut and thrust fighting (somewhere in the net is a very interesting photostory from the excursion of fencers and sword experts to the Museum.
The next sword M1685 was for Swedish infantry.
The third was just labelled 1680 - Northern Europe.
All the traces go to Sweden just as it was suggested before. I didn`t suspect that it could be Swedish sword!