Probably die deterioration Chips and small die breaks are common Can you show the entire obverse and reverse? There are things we look at for evidence of what's going on.
Generally if you can see something minor with a microscope that is not visible to the naked eye, even if it is something there's usually no value.
Please ezplain more of what we are looking at. I really don't see anything different between the two photos. I am with Micheal on this one.
