[gap]

Originally Posted by Kendras

Something interesting : http://www.kartengruppe.it/immagini/...0/0088G-SB.jpg (from : http://www.kartengruppe.it/index.php/nordsee-deutsche-admiralitatskarten)

But although the map was printed in 1943, it's based on a 1913 map.

In 1943, the island was bigger, as you can see on this picture :

Originally Posted by Kendras

Probably because of this : https://en.wikipedia.org/wiki/Project_Hummerschere

Good findings, thank you for sharing!

I don't know how far the Nazis went with their expansion plan, anyway the sandy beaches of Helgoland and Düne are subject to a strong tidal erosion, and their size and shape might have changed over time. Add to that the fact that after war the Brits tried to sink the main island