[swarmee]

around the printed/stamped back, you can see an faint wavy outline where it looks like these may have been printed separately, then affixed(?) with an iron/steam which then adhered them to the back and made them a little drippy? Or am I seeing things. The ones posted as authentic don't have a faint border in between the printed back text and the card edges, but the posted ones from the recent auction all seem to.

Caveat: I have no experience with this issue, just seeing differences between the scans.