Elbing — the Hanseatic port city on the Vistula delta — was seized by Swedish forces in 1655 during the opening campaigns of the Second Northern War, the conflict Poles remember as the Deluge. Karl X Gustav authorized local coinage at Elbing partly as a practical measure for paying troops and partly to project legitimate authority over occupied Prussian territory. The city's mint had a long tradition of issuing its own currency, which made the infrastructure ready to exploit.
The Kop. 9661 reference places this firmly within Kopicki's exhaustive Polish and related coinages survey — the standard attribution for Swedish-occupied Prussian issues of this period.
Elbing — the Hanseatic port city on the Vistula delta — was seized by Swedish forces in 1655 during the opening campaigns of the Second Northern War, the conflict Poles remember as the Deluge. Karl X Gustav authorized local coinage at Elbing partly as a practical measure for paying troops and partly to project legitimate authority over occupied Prussian territory. The city's mint had a long tradition of issuing its own currency, which made the infrastructure ready to exploit.
The Kop. 9661 reference places this firmly within Kopicki's exhaustive Polish and related coinages survey — the standard attribution for Swedish-occupied Prussian issues of this period.