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					Originally Posted by  nebboy
					 
				 
				SGC - for pre-war 
PSA - vintage 
BGS - modern  
Seems to be best for return, but as many has said in threads past.   
Buy the cards not the holder.  
  
Ive found over/under graded in all 
but they all do a fine job.  
			
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 John, 
What are your definitions of "pre-war", "vintage", and "modern"? 
In my mind, there could be quite a bit of overlap between pre-war and vintage.