When did the true "series" concept begin
In the post war era, issuing cards in series was very specific. 1st series had cards 1- x , second series had the next group, and so on. You couldn't find cards from a different series in a pack from a later series.
When did that take hold? Lots of pre war sets had what we're called "series" but they often included previously released cards. T-206 is a prime example of that
When did the strict, series one, series two, series three...begin?
|