I would believe the others here when they say WD40... The only reason I cringe is because I have never thought of using that on coins and I have thought of where I have used it in my life....
If I were you I would probably try the acetone first... good luck please post pics side by side.. like a before and after kinda thing... would like to see how it turns out
If I were you I would probably try the acetone first... good luck please post pics side by side.. like a before and after kinda thing... would like to see how it turns out


















