Actually.. it does have the clad layer. The Cupro-Nickel clad has Environmental Damage. Exposure to the elements such as dirt, sand, soil, water will affect the clad and change it to a darker color. It is not a Mint error.
It's just "rusted". As Paddy says environmental damage. A very good way to test coins is to weigh them. If the weight is correct, it's usually not the error that you think.
If it has no "clad" on it, then it isn't clad. Clad is the sandwiching of copper-nickel foil over a copper blank.
The inner core is copper. If it was a copper dime, the outer layers would have to be missing. This would make your coin very thin, and very light. Also the copper would be much brighter than what you are seeing. Usually when there is a clad layer missing, it is on one side only. This photo is a quarter with one clad missing, but I think you will be able to see what I am talking about. And below it is a dime I got metal detecting last Sunday. Environmentally damaged.
As mentioned it is just Environmental Damage which just means the metal ... yes coins are made of metal just like your car or metal fence and when exposed to the elements can discolor, corrode and rust.
Hey guys i was gonna post a new thread but said hell with it i have this 1942 mercury dime and i see 2 mint marks one side says a W and other has a D just wondering if thats normal
On the obverse /front the "W" you see actually is a "W" and an "A". These are the initials of the designer, Adolph A. Weinman.
