Rim die break – Cud
The rim die break, also known as a cud, is a type of coin error that occurs only on the edge of the coin. It is essential to note that the gutter, which constitutes the edge and is the most engraved part of the die, is the weakest point of the coin. Therefore, this type of defect is common. It is crucial to distinguish between the rim die break and the marginal die break. The marginal die break occurs when the field and the incisions adjacent to the gutter of the coin are compromised. This small difference is important to know to accurately identify each type of minting break.