But for the heroism of the signallers, it would have been insuperable.
Staff cars and signallers on motor-bikes went busily on their way.
There was a room for the signallers, another for the adjutant and one for the commandant.
The Captain had his sounding-line going, and I was on the upper deck with the signallers.
Officers did no more than the privates, signallers and bombers ...