The railway guillotine for making it inconvenient for the enemy to use our railways in case of invasionSH118
The railway guillotine for making it inconvenient for the enemy to use our railways in case of invasionSH119
Some of our new light quisling guns for capturing Quislings alive in raids on enemy occupied territorySH123
Some of our new sixth columnists frustrating a dastardly attempt by the fifth column to tamper with a railway signalSH127
One of the first mobile location detectors designed for hilly country operating in the Welsh mountainsSH128