An off-center strike happens when the planchet (metal blank) isn't properly positioned in the die. The result is a coin with part of the design missing.
Double Die
A die crack is a break in the die that can be seen on the coin's surface as a line or crack.
Die Crack
Die Chip
A die chip is a small piece of the die that breaks off and leaves a mark on the coin.
Die Gouge
A die gouge is a deep scratch or indentation in the die that creates a visible mark on the coin.
Broad Strike
A broad strike occurs when the die hits the planchet at a wider angle, creating a stretched-out design.
A doubled die error results in parts of the design appearing twice, creating a blurred effect.
Doubled Die
A rotated die error results in the design appearing slightly tilted or rotated on the coin.
Rotated Die
Lamination occurs when the metal layers of the planchet fail to bond properly, resulting in a visible separation or a thin, flaky spot.
Lamination
Planchet doubling occurs when two planchets are accidentally struck together, resulting in a coin with a double image.