Check out the following in Wikipedia. More than your would ever want to know about errors. https://en.wikipedia.org/wiki/Mint-made_errors#Doubled_die
No disrespect, but that's pretty basic and there's a lot more one truly interested in errors, and particularly varieties, should know. It seems a okay general overview though, and probably a decent introduction.
What!! You mean Wikipedia isn't the ULTIMATE source...I really need to learn to control my sarcasm...sorry.
Wasn't in reference to you Rick. Just a general statement on how people are treated when it happens.. Like the whole Penny thing. A person comes here says they found a Wheat Penny and Oh my Gosh.. You know what I mean. Perhaps I should call Charmy and tell her that her name should really be The Cent Lady.
I didn't say anything about being common, I said that the coin 59 Wheat Cent is plausible. The article I linked said "1" I don't see where you got common from that. Settle down big guy.. : )