EM EM : monthly magazine - 01.07.1941, Side 27

Bashful Model Britain’s Floating Fortress—Ready!
Em Etn
27
Here are viewg oí a floating fortress, one of many which Britain has anchored in a ring around England.
Manned by army and navy men the sea fortresses can withstand the heaviest of shell íire and are capable
of sinking any enemy vessel that approaches. Left, one of the medium guns is loaded for practice firing.
Kight, top, a supply ship approaches. Right, bottom, men below send up shells for the heavy guns.