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PaulBob Lemke has recently written an article showing that there were three print runs, not two. So the sets could be labelled M101-5A, M101-5B, and M101-4. However, the first two print runs (5A and 5B) are so similar that he is leaving them under a single designation, M101-5. The first print run (5A) includes cards of Bobby Wallace and Beals Becker, who are not in the second or third print runs. I believe Bob found a few more changes between the two print runs, but not nearly as many differences as between M101-5 and M101-4. If these differences had been noticed when the ACC was written, this group of sets probably would have been give three separate designations.