The coin error known as Doubled die is a result of a misalignment in the production phase of the die, specifically during the transfer of the image from the hub to the die that will be used in the money press. Dies are created using a hydraulic press that compresses the hub against a virgin die with a pressure of hundreds of tons. Due to the hardness of the steel used in the die, subsequent compressions cannot completely erase the previous compression. Therefore, if the hub and the die are not aligned in subsequent compressions, the image on the die will display signs of the previous compression, resulting in the so-called “doubling effect”.