I never experiment on anything that is worth more than face value. Like ponce de leon once searched for the fountain. I search for a safe cleanser, about twice a year when I am bored with a stinky dirty coin. Just me. I do not try to decieve anyone.
On either side of the foldover you will notice the collar lines are impeeded. Due to an over hanging feeder finger, these areas have an inclined rim, so that would be good evidence to support my hypothesis Even the healthy looking rim has an inclined collar under it. I washed this coin twice for 30 seconds with panteen for its new photos. Also I will 2 by 2 this coin.