how much are they worth? I have a 1987 Lincoln with RPM and possibly a 1989 Lincoln with the same. Worth anything other than face value
Those are all Plating bubbles. No premium. Here is what you have on the 1989 http://www.error-ref.com/zinc-deterioration-on-lincoln-cents/#:~:text=Zinc Deterioration on Copper Plated Lincoln Cents. Definition:,layer helps prevent further deterioration of the zinc.
