brockage
/ˈbrɑkɪdʒ/
noun
- A coin with a design error caused by a previous coin sticking to the die during minting, resulting in a mirror-image impression.
- A brockage occurs when a coin is struck and the previous coin remains attached to the die.
- The collector paid a high price for a rare brockage from the 1800s.
- The museum displayed a brockage penny showing a double image on one side.