Posted By:
J HullHa Brian. Sounds like fun.
I'm sitting in a mostly empty office watching a blizzard, so here you go.
P.S. This data's a couple months out of date, so could be missing a few. And/or someone else may have more complete numbers...
All 350-only cards (AL + NL + AA + EL):
210 cards / 143 confirmed with Polar Bear backs (68%)
American and National Leaguers:
72 out of 124 confirmed to have Polar Bear backs (58%)
American Association:
36 out of 39 confirmed to have Polar Bear backs (92%)
Eastern League:
35 out of 47 confirmed to have Polar Bear backs (74%)