Pictures won't enlarge. But I can tell you right off the bat that it cannot be a repunched mintmark. I know for cents, they stopped sdding the mintmark to the working dies after 1989. I imagine that they did the same for dimes around the same time as well. Keep up the hunt!
Even if there was a "second" P, it would be the product of die deterioration doubling or mechanical doubling. The mint stopped adding mintmarks to the working dies some years before, thus eliminating thepossibility for a repunched mintmark.
