list above
			 
			 
			
		
		
		
			
			Looking at the list (above) of required blades from the SB smiths in 1703, we see many mentions of hollows - sometimes three hollows; what is that all about? 
I don't understand some of the terms used to describe blade types so I don't understand what they meant by three hollows.  Any help here anybody?
		 
		
		
		
		
		
		
		
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