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MarkHal, where did you come up with the requirement that rookie cards must have been nationally distributed? Wouldn't that require confirmation that a particular card (e.g., a particular backed M101-5 or T206) was sold in each and every state? Do you really think Carolina Brights were sold in the West? Has your research revealed that your 1926 Spalding rookies were distributed on the East Coast?
You have a lot of cards on your website that you call rookies that were clearly not distributed in every state (e.g., all of your foreign cards such as the '36 Dimaggio, '24 Ruffing, Leon Day, Dihigo, Lloyd, Dandridge, etc.) or haven't (to my knowlege) been proven to have been distributed in every state or weren't distributed at all (Alleghenys).