Not red enough to be a missing clad layer. You'd be seeing straight copper if that was the case. It looks like just one side of the coin toned. Check the edge, and you should still see the typical clad coin sandwich.
I'm guessing that it was probably in an album of some sort before someone decided to spend it. Like @Paul M. said, it doesn't look like copper. Chris On second thought, why would anyone put it in an album with the obverse facing up? There is no telling what caused the discoloration.
How did you find this thread? https://www.cointalk.com/threads/an-example-of-coin-counting-wrapping-machine-damage.25530/
Didn't need to. A large, circular mark, following the arc of the coin is a dead giveaway of counting wheel damage.
Yes, but you were just viewing that threat, correct? That threat goes back to 2007. Just wondering how you found it.
I am not sure about counting wheel damage so much as end-roll-crimping machine damage with the reverse showing at the end of the paper roll which toned according to its environmental storage. I may have some like this!
Wrapper damage not counting wheel. A counting wheel mark looks like a dremel with a wheel brush accidentally touched it quickly while a coin wrapper scores a concentric mark around the coins perimeter I have a counting wheel.damaged error coin and labeled as such if you'd like to see it.