Hi Colin, 
           I see where you're coming from now. I notice the shield illustrated by the Rev Wood has an elliptical shape as against the more general circular shape. I wonder if there is any evolution from one shaped cutout to another as I suppose one could argue that the cutouts on mine and others of course could act either as a visual aid or a spear rest. Thanks for the continued info. 
My Regards, 
Norman. 
 
P.S. Some more images of Beja shields.
		 
		
		
		
			
		
		
		
		
		
		
		
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