2016-P Jefferson Nickel - Minor Unlisted DDR With Tiny Die Circle

This is a fairly interesting find. It's a minor, unlisted DDR 2016-P Jefferson nickel, with a tiny die circle error. You can see the horizontal bar under the top of the doorway inside the circle. I'm not sure if the vertical bar at the right edge of the circle is associated with the tiny circle, or if it part of the doubling. It could be doubling from the right side of the door, associated with the circle, or a perfectly placed die gouge. I would love to think it is doubling of the door, but I can't make the call for sure. Hopefully @mikediamond will chime in sometime.

This is the first of the tiny circles I have found on a nickel. I saw while searching the forum that E&V found one on a 2014-P nickel. I have found 2 Bombay Hook quarters with a tiny circle. They were both in the same days pocket change.

Thanks all!