The map is from Gebhardi's Kongerigerne Danmarks og Norges samt Hertugdømmene Slesvigs og Holsteens Historie indtil vore Tider which was published in 13 volumes 1776-1798. Pingeling did the engraving but it is not known if he is the author or not. The map is similar to Bellin's map of the North or one of its copies.