This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Slesvigcounties. Tha map shows the administrative areas within the duchy of Schleswig before Map drawn by Lars Helbo Kortet og den flgende liste er en forenklet oversigt Mod nord ligger Kongeriget Danmark og med samme farve mod vest de Kongerigske enklaver Mod syd ligger Holsten Fr hrte en Helgoland ogs med til Slesvig Haderslev