Black 1996 D Roosevelt Dime!

Well, I was searching through a box from the bank of Roosevelt Dimes and I came across this black dime.

Any thoughts about how this happened?

Thanks for your time in advance !

 

Log in or Sign up to hide this ad.

Environmental damage

 

Hum...interesting. I'm glad someone flipped the coin over so that both sides were evenly damaged!

 

Environmental toning. Exposure to the elements and buried coins have their Cupro-Nickel clad layer affected over time..

Here are some of my metal detected examples

Even nickels..

 

Agreed.

 

Don't have to flip it over if it's submerged or buried.