That is very helpful TVV.  Did not know that about the dot and circle.  I have seen these on Balkan arms as well, but not lumped together in this type of configuration except on Afgani/north central Asian pieces.   
 
What you said does make sense of the use of some form of dot and circle motif all over the Islamic world.
		 
		
		
		
		
		
		
		
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