Hello I have a 1993 D brass plated penny. I understand the mixed feelings on these, but what has me puzzled is it makes the same sound as my copper pennies doing a drop test?? I am getting a scale soon. Any ideas??
Bahahaha I don't know why but that was the coolest thing I've heard all day lmao!! Thank you for the info
The brassy color is probably toning from exposer, and may be the cause of the blisters. But, I think the cause of the blister is contamination of the zinc planchet before plating. Once a zinc cent acquires blisters like your coin it has no value, it just becomes a curio.