This aerial photograph was taken by a plane of the German Luftwaffe. It is focused on Brighton.
It was one of several taken of the English south coast to prepare for an invasion. A key on the bottom right identifies potential defence measures that German forces might have to encounter.
At this time, the central sections of both the West Pier and the Palace Pier were dismantled so they could not be used as a landing stage by German troops. These have been circled on the map and are marked as destroyed (Zerstört).