Each Lincoln Wheat Cent was produced using a metal alloy of 95% copper and 5% tin or zinc until 1982 when inflation made copper too expensive. Since then, the U.S. penny has been produced using zinc with an outer layer of copper for color; So its not just the outer layer pealing away. Where is this house resident that knows pennies, maybe he will have some suggestions. IMHO it looks as though some of the zinc is exposed, which I believe is considered an error. I have heard of people trying to put Mercury on wheat cents to expose this inner core because of possible premiums. If you got anything from this give me a like.
You are mixing things up. You are correct that bronze wheat cents are made of an alloy that is 95% copper and 5% tin and zinc. What you seem to not understand is that bronze wheat cents are the same alloy throughout; they do not have a zinc core (like modern Zincolns). Your 1953-D does not have an outer layer or a zinc core. It is the same bronze alloy throughout.
Which is it Hobo? This guy is someone....liked 1,145 times.....he is your answer man kellef.:rollling: