Mike;

The general rule I use is get two cards at least
in every casino I visit, on each visit. The cards
change so often that you can not assume the ones
you have are current. If you end up with extras
of types you have in your collection they become
trade stock.

Two catalogs of slot cards and one of room keys
are published but it is an almost imposible task
to keep them up to date. As example I have visited
six casinos in Calif. this week and three had new
cards; an a fourth has a new card coming in July,
and another comes out in Aug.

I hope this gives you some info.

Jim Noll R3123/PACK #12