A radiographer operating the mobile radiography and X-ray equipment
A radiographer is about to take an X-ray. The current coming from the mobile unit outside the building, and communication between the operator and the assistant in the generator van is by using bells as signals. Mobile X-ray units, designed by Marie Curie, had been used during World War One. By 1939 reliable and shockproof portable radiography equipment was available. The British Army was supplied with a robust model that could be transported in a crate.