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jay behrensWhen they were being sold, you could order a picture of any active player, thus, the theoretical checklist is every major leaguer from 1902-11. HOFers are much easier to find than commons in this set and many cards that listed in the SCD big book and other checklists are unverified since most of checklists were created from the ads that listed all active players at the time.
Jay
Growing old is not optional, growing up is.