This is one of two known Large Cents overstruck on coins from other countries. This is a very dramatic double denomination Large Cent. Somehow a 1731 George II Halfpenny which may have been circulating in the United States was erroneously mixed in a batch of blank planchets intended for large cents. There is a tremendous amount of detail visible from the Halfpenny. Both portraits are visible and line up together as well. A fantastic major mint error and a discovery coin.