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					Originally Posted by Leon  They are both good companies but many vintage collectors feel SGC knows vintage, especially pre-wwII, better than PSA. And since this is predominantly a vintage/pre-war forum that is why you see the cards in the BST that you do. | 
	
 still what is the market share of PSA v SGC prewar?  On net54 you would think there are way more cards graded with SGC but I thought PSA has the majority stake in vintage/pre-war