Something was bothering me about this map. You can see Quebec and part of Hudson Bay.
It's in the control room of the, I think, Type II-D.
Anyway, what is wrong is that the map's image is
mirrored.
No matter how you rotate the map around, this map would have east and west all mixed up. :P
You might end up in Iceland instead of Norway using this map.

Just an interesting observation I thought I'd share.