[Fred]

Why bring anything. I guess you'd figure out a way to get $$. Rob a bank, whatever (ok, bring an assault rifle with you).

Then why bother with buying the cards. Go to the lithography print shop and run a few hundred sheets. Make sure to include all the top error cards and the big four in your print runs. Make sure you have a lot of the tough backs and all the HOFers in large quantities. Create a Honus Wagner with a Honus Wagner back while you're there.

Also, be a nice guy and tell Addie Joss to get himself checked out and prevent his death. Why stop there, while back in time, visit Austria and find out where Adolf lives and plan an accident ahead of time so he doesn't make it to Germany in 1913. I guess according to Doc Bown, that that would screw up the entire space-time continuum, and in the modern day, nobody would give a crap about pictures of dead guys on cardboard and you'd have a worthless stash of lithography that nobody wants and you'll be wishing you went back to the 1950s and picked up Pele rookies.

oh, got a little carried away there...