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Struck through coin – Brockage
Struck through coin – Brockage The coin error known as “Struck Through Coin – Brockage” occurs when a newly minted coin remains attached to the upper or lower die during the striking phase. This results in another planchet being introduced into the beating chamber, which is then struck together with the previously trapped coin. In…
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Wrong planchet
Wrong planchet Wrong planchet is a type of striking error that includes all coins that have been minted on objects other than those intended by the characteristics of the issue decree. An object refers to any physical thing that could end up in the beating chamber during the minting process for any reason. An example…
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Partial collar
Partial collar The coin error type known as “partial collar” is similar to broad typing in that it results from a malfunction of the monetary press during the minting process. During the minting process, three elements come into action simultaneously: the upper die, the lower die, and the collar.As previously discussed in the sub-category of…
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Double or multiple strike
Double or multiple strike Off-center strike is a type of coin error that occurs when a coin is struck off-center, resulting in an incomplete or partial design. This error can also occur with double or multiple strikes when a coin is struck two or more times before being ejected from the beating chamber. Coins with…
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Off center strike
Off center strike Off-center strikes are a type of coin error that occurs due to a horizontal misalignment of the planchet with respect to the position of the dies installed on the money press in operation. This error happens when a planchet is fed into the press and falls into the spinner improperly. The result…
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Broadstrike
Broadstrike Broadstrike is a type of coin error that occurs when a coin is minted outside the collar due to a malfunction of the monetary press. The collar is a retaining ring that establishes the final diameter of the coin just minted and sometimes also impresses the engravings on the edge. When a broadstrike error…
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Doubled die
Doubled die 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…