So I've had this nickel in my collection for a while and it looks quite odd. Is it an error? (EDIT: CRAP I MEANT JEFFERSON)
If it were a Roosevelt nickel, that WOULD BE quite an error, wouldn't it? It's damage ... and it's Jefferson.
You can edit your title. Hit Thread Tools then Edit Title then save Also.. Don't use the word that sounds like clap.. You can get in trouble!
That looks a bit like acid damage to me but I'm no expert. Hopefully some other people can chime in and add their speculations as to what that is.