My one observation is that the workmanship seems a bit crude for European manufacture .
Look at the engraved rings on the ferrule; a European smith (in the era we're speaking of) would probably have not let that ferrule out the shop door .   
  
The Apprentice who did the work might have been dismissed also . 
So I'd guess there is not much of European manufacture here; maybe the button, tack and lower crossguard . 
Africa gets my vote for now ..  
 
Best,
Rick