Półtoradukat gdański - August III Sas Gdańsk mint

The 1763 półtoradukat from Gdańsk is among the final emissions of Augustus III's reign — he died in October of that year, making this a terminal issue. Gdańsk operated with unusual monetary autonomy as a Royal Prussian city, and its mint produced denominations tied more closely to local Hanseatic trade patterns than to the broader Polish monetary system. The półtoradukat itself — a denomination valued at one-and-a-half ducats — was never widespread in Polish coinage and saw production primarily at Gdańsk, reflecting the city's distinct commercial needs.

Kop#7761 with the KM#Pn27 designation suggests pattern or trial status, which would make surviving examples extraordinarily few.