Yes on the cleaning, it was so corroded I couldn't tell what it was completely, knew it wasn't high value, so cleaned to see what it was, that's when I noticed the D MM anomaly'. Wasn't trying to hide the cleaning. One other coin I posted tonight was heavily corroded and cleaned to identify as well. Next time I will post in original comments cleaned. The big abrasions were from circulation, I used a petroleum distillate in my fingers to lift the grime, and soft microfiber cloth to wipe away excess grime and oil.
Just thought the MM wave was unusual.
Thanks for the comments.