Posted By: 
RC McKenzieI'm not following. If the paper is dated by folks/experts that have no interest in baseball cards as late 50's , then either the cards are from the late 50's or an evil doer wants us to think that they are from the late 50's. Why would not this 'evil doer' find paper that dates to the 30's and print it on that.
The fact that all the photos can be traced to the same photographer indicates to me that the series of cards is of innocent origin. I don't own any of these cards and have no interest other than that I stand by what I originally thought based on Mike's findings. They are a neat obscure, 50's set of baseball cards.