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All are real. The only question is will they come off with or without damage, which depends on the glue used. In some cases you can sell the intact cards for more money, than the risk/reward of removal, which in some cases actually devalues the cards if all does not go well. Nearly all of these are low grade cards to begin with, even without removing them and risking further damage. If you can cut one or two off a corner or edge card and soak to see whether they will easily come off or not, might make the decision easier.

Also, this will often tell you the preponderance of the backs, if you hit a run or Piedmont or Sweet Cap, the odds of rare backs goes down, as many smokers were devoted to their brands. There are a few American Beauties on there so, maybe a mixed batch.