Hmmm. My Nero paduan has a "seam" like that on the Vespasian in the OP. Should I reconsider its authenticity since it is not a match to any known Paduans?
I don't know if you should reconsider your Paduan, but that reminds me of fake Roman coins made during the renaissance when Roman coins were in high demand by collectors. Common sense tells me that some of those fakes are probably better than modern ones. I don't know for certain if the coins pictured in this thread are fake, but as it has been said numerous times on this forum by different people: Why bother keeping a coin you have any doubt about it? Every time you pick up that coin your eye will be drawn to that edge and you will wonder about it. CNG has proven to be fallible before...