5929411 Tenderly lifting a serious case. Stretcher bearers at work\', 1915 circa (b/w photo) by Unknown photographer, (20th century); National Army Museum, London; (add.info.: Tenderly lifting a serious case. Stretcher bearers at work\', 1915 circa. Stereoscopic photograph, World War One, Western Front (1914-1918). Wounded men would be sent back to an Advanced Dressing Station (ADS) after receiving an initial diagnosis at their front line Regimental Aid Post (RAP). The ADS was normally run by a Field Ambulance and was better equipped than the RAP, but could still only provide limited medical treatment. More serious cases would be referred to a Casualty Clearing Station (CCS), a larger and better-equipped facility that normally provided medical care for an entire division. One of 100 stereoscopic photographs.); by National Army Museum ; out of copyright.