reminds me of a technical ice axe  
 
i think hitting someone with it would not be too practical as if it stuck in the victim you might loose the weapon  
 
the angle of the grip would save your knuckles when hammering into ice as well  
 
I I have done some technical climbing in the past and i could see this being quiet effective 
 
The lack of hammer or adze on the back however is counter to my idea. 
 
Interesting  
 
Regards 
 
ken
		 
		
		
		
			
		
		
		
		
		
		
		
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