Any ideas on this one? The front surface of this '67 Pappas has a rigid, textured / wrinkled quality that I’ve never seen before, and almost looks like it's scratched. It does not appear to be damage (very uniform, cannot be seen when looking at the card unless held at the right angle), but almost a quality of the paper stock? Card would appear to be real and not some kind of fake; the halftone dot pattern is correct and the back is normal in comparison to my other '67 cards:
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