Hello i was wanting to get some info on a 1944d wheat penny I have. I think it might be a d over s and I also was wanting some input on a 1950d wheat penny if it is a planchet error or what because it looks to me
What your seeing is Patina . Probably spent time in a wet atmosphere . I have several like it but they are "dug" coins from Metal Detecting .
That's verdigris. It forms on copper. Painters centuries ago would let it form then scrape it off to make paint from that color. I was horsing around, Matthew, didn't mean to be taken seriously, that's what that meant at the end...