Thank you all for your comments 
and help for fix the origin of the knife/dagger !! 
 
I didn't know it was called a Gile. 
 
I post two pictures of the hilt parts, a little translucence, 
help me to confirm it is horn 
( otherwise it was really difficult to say it wasn't wood , really look like...)
		 
		
		
		
			
		
		
		
		
		
		
		
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