we just stumbled on a spot with a bunch large cents. most are totally toasted but my son founf one that "not bad". in the past i have just soaked copper objects in fresh water then licked them. if they didnt taste salty ...done.
sometimes this works other times, the objects get green and crumble. i know there is a better way...but till now i really didn't care. any hints??
sometimes this works other times, the objects get green and crumble. i know there is a better way...but till now i really didn't care. any hints??