Many replicas and contemporary counterfeits have marks (mint, mint official) copied from their base type. These marks are not of the mint that made the replica or counterfeit so they are not written in the mint letter and other marks fields of the year line.
Now these marks are written in the comments field of the type, for example:
However this is written in a text field, so not all users add this information, or use the same format, and this should be added in English and French.
Could be added fields for marks of the base type in case of replicas or contemporary counterfeits.
