2 Mark Dansk - Frederik III

Frederik III's reign opened under catastrophic financial pressure — the First Northern War against Sweden (1655–1660) drained treasury reserves and forced repeated debasements across Danish silver coinage. The 2 Mark issues of this period reflect that strain directly: the .671 fineness represents a deliberate reduction from earlier standards, sanctioned by a crown that needed metal to stay in circulation rather than be hoarded or melted.

KM#191 spans a five-year emission window, which typically indicates retooling of dies mid-series. Survivors in consistent condition are uncommon; wartime circulation was brutal on large-denomination silver.