since you alluded to it but had a different take, one of the issues i see is that the "bleed through" of red from front to back is not aligned with the centering of the red on the front. look at how off center the red is on the back versus the close to perfect centering on the front.
also, look at 3 and 4 from this link (links to an image of a real gehrig and shows differentiating features of real vs counterfeits) to see a couple of other potential issues:
https://images.search.yahoo.com/yhs/...g&action=click