Great looking item 
 
It looks like a real multi tool of a  weapon with spikes and blades in all directions, like the African throwing knives in a way. 
 
Personally I take a similar approach to cleaning, only when active rust is present. 
 
Great collection of polearms by the way I enjoy your posts 
 
regards 
Ken
		 
		
		
		
		
		
		
		
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