Definitely a German inscription, I can read: 
 
Zur Erinnerung ??????? 1884 
??? Lang 
 
In remembrance of ????? 1884 
??? Lang 
 
Would need a clearer Photo to be able to read the rest of the words. So this dagger was a gift from a guy named Lang to remind of either an event or a person. This is regrettably illegible on the pictures.
		 
		
		
		
		
		
		
		
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