Posted By:
DJThis discussion is basically like screaming at a brick wall as everyone seems to have a different idea of how to approach it.
My definition is what cards helped form this business and if that is the question, you have to put cards that people actually own and/or know about. The sad thing about history is that it's lost to most of the world.
Sure obscure high value and one in the world cards are fun to put on this list but IMO, it all comes down to the cards that helped form the collecting mind like the rookie cards of Rose, Ryan, Griffey, Mattingly etc.
If you go to the National Convention and ask EVERY card collector about Jimmy Claxton or what a Zee-Nut is, 99.9% of the people will issue you a blank stare. Or ask them what a Yum Yum is or maybe look for people on the show floor who may own one.
Of course, this is brought to you by IMO.
DJ