4 Skilling Dansk - Christian VII

Christian VII was nominally on the throne in 1783, but the Danish state was effectively run by a regency council following the king's mental incapacitation — a condition now retrospectively diagnosed as likely schizophrenia. The monetary reforms of the 1770s had attempted to stabilize Danish coinage after decades of debasement, and the billon skilling denominations were a practical concession: too small to justify fine silver, too important to abandon entirely.

KM#644 is not a scarce type, but survivors in problem-free condition are genuinely uncommon given the denomination's heavy everyday use.