Hi Ricky, 
I have thoroughly gone thru my Proof Mark reference books and can find no mark the same as those shown on the side of the barrel. The crossed maces?? look a bit like the marks used by the Birmingham Proof House in the UK but are NOT the same, so the origin remains a mystery. As to the marks on the top of the barrel, I have no idea at all. The script, if is IS actually script, is not familiar. 
Sorry I can't be of more help. 
Regards Stu
		 
		
		
		
		
		
		
		
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