Production dates, amounts, and estimated surviving examples are given for each mint. Estimates are based on an average 1–5% survival rate of coins of the period due to circulation, clipping, and melting so counts may vary from lists of known examples of specific issues.
Colchester was originally thought to have produced coinage during the siege in the summer of 1848 during the Second Civil War, but it is now believed all pieces were produced at a later time.