I am curious about the "rings" of cracking or peeling right around both sides of the coin, just inside the rim. They are barely visible on the Oct 2017 pics but easily visible in the July 2018 pics. What could be causing that? I can only assume it's got something to do with how the RCM
makes the blanks for these coins.
Not sure what is causing it but a few of my other pocket pieces are doing it as well.
was artificially aged because it had the same effect while my pocket worn ones hadn't developed it at the time but now I know from experience.