Fool
Senior Member
Sadly my mother passed away 2 years ago, i moved most of the stuff out of the house into mine due to high sulfur in the air from the well water. I finally got around to going through the coin collection and a lot of the coins are black from sulfer, mostly wheat pennies. Is there a good, safe way to clean them? I doubt any are worth a lot I just want to clean them up so they don’t get worse…