The only CC mint coin I have ever found.  This was at a site that goes back to the 50s, and had given up plenty of modern silver, including a walker, but nothing really old.  It was a frustrating day, digging deep clad quarter after deep clad quarter, then this gem popped out, pretty much at the same depth as all the clad.  Was near an old one room school house adjacent to the site. Here is the original blog entry.

Found: 13-Aug-2019; Location: park/school; Machine: E-Trac