This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Nurses in gas masks at the trenches in Germany.. en Nurses in gas masks at the trenches in Germany during World War Courtesy of the National Library of Medicine Images from the History of Medicine IHM nlm nih gov Also showcased in the book Hidden Treasure New York NY Blast Books HMD Prints Photos call number PP United States