1 Thaler - Frederick II Speciestaler - Königstaler

Frederick II authorized this heavy taler in 1750 as part of a broader currency reform intended to stabilize Prussian silver coinage after years of monetary inconsistency. The "Species" designation distinguished it as full-weight bullion-grade silver, explicitly differentiated from the lighter convention thalers circulating elsewhere in the German states. Within five years of this coin's striking, Frederick would debase Prussian coinage dramatically to finance the Seven Years' War — flooding occupied Saxon mints with underweight issues while keeping full-weight pieces like this for international trade settlements.

The 1755 date places it on the precise cusp of that debasement, making pre-war Speciesthalers the last honest silver Prussia produced for nearly a decade.