No-date Lincoln wheat cent with obverse counterbrockage. The design is raised on the obverse, and overflowing over the coin's rim. Counterbrockages are very scarce on wheat cents.
Counterbrockages occur when a planchet is struck on top of an already struck coin, it then sticks to the obverse die and becomes a die cap, and then the brockage making cent beneath it is ejected from the striking chamber. Then that die cap begins to strike incoming planchets. The coins struck will be counterbrockages, with a faint obverse design, which will be "raised" and will be somewhat vague and spilling over the coin's rim.
NGC AU-53 Brown