[rhettyeakley]

Todd, there are actually a few that have some slight variations but I am not ready to out these yet as I need to do more research to confirm my theory. That being said, the VAST majority (roughly 75%) of "Koester's" cards are simply W575-1 cards--one would not be able to tell one from the other (thus in my opinion they are the same thing).
-Rhett

I just wanted to add: To me it would be analogous to making a distinction between a regular Tom Barker game card a card that came out of the Fenway Brewery set. The only cards in the Fenway Brewery set that are any different are the Baker and the Scorecard/Instructions have had the red overprints on them. Any cards other than Baker and the Scorecard by themselves one would never be able to tell which "set" they originated from--thus they are the same thing (at least in my eyes).