Posted By:
jay behrens21-30 it's tough to come up with an important card off the top of my head.
31-40 33G Lajoie
41-50 41PB DIMaggio
51-60 52T Mantle
61-70 63T Rose
71-80 80T Henderson or 75T Brett
After 1980 it's more about sets that are important to the hobby than individual cards. The only single card I can think of as being important is the 1981 Fleer Nettles name misspelled that caused the error mania.
Jay
I like to sit outside, drink beer and yell at people. If I did this at home, I would be arrested. So, I go to baseball games and fit right in.