Very common to see these on the 2015 and 2016 dimes. Note the reverse central area, how smooth that area is? This was an example of a previous feeder finger damaged die, that had now been polished out. The dies really suffer when these are abraided.
My tutorials, in my signature box below about Die Deterioration and Die Deterioration Doubling, will be good for you to check out, if you haven't yet. Lots and lots of good information.
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