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					Originally Posted by brianp-beme  I think the 1941 Double Play card of Enos Slaughter/Johnny Mize is the closest you will get.  It is Slaughter's first appearance on a card.  Mize had some as early as 1936, but they are either larger cards like an oversize premium or Exhibit, or real esoteric/less desirable one like the Overland candy wrapper.  I consider his first 'true' regular issue the Double Play.
 Brian
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 Sounds right to me. I was guessing about Double Play.