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					Originally Posted by kahnjar1
					
				 
				Yes I agree they LOOK like, but are not IMHO. Proof marks do not vary in any way as they are an OFFICIAL item designed for a specific purpose.....gun barrel Proof, and the Brits take this VERY seriously, for a very good reason....safety. 
Stu 
			
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 A reasonable assumption, but it seems that there were variations within the basic design of these early crown over crossed sceptres marks, please check the pics below. In numismatics a similar situation is called a die variety, variations in a coin’s design that are attributed to the die from which the coin was struck.
Regards,
Andreas