Although these type of weapons are not my field, I think Emanuel gave the right description. 
But I'm afraid that it is a rather rescent made blade. A waved blade is rather uncommon for these type of daggers. Looking at the close up of the blade I see some marks of a file and the blade looks rather thin to me. Although the piece looks nice, I'm afraid it isn't the real thing.
		 
		
		
		
		
		
		
		
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