There are 2 interesting features that may be informative: 
1. Pin in the center of the quillon block : usually a feature  of Afghani or NW Indian sabers.  
2. Downturned quillons: traditionally dating the handle to 17th century. 
 
The validity of either of the above is not absolute, but quite suggestive.
		 
		
		
		
		
		
		
		
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