Hi,
It's not a lamination error. Veteran roll searchers are finding many coins damaged like this. Some are worse than others. Some people are starting to call them "Katrina" coins as they seem to have been immersed in water for a period of time, causing staining and decomposition.
I am not 100% sure about the origins of the coins but I have seen hundreds like this. I am 100% sure though that it is damage.
Thanks,
Bill