History: A patient wearing a flu mask during the flu epidemic which followed the First World War. 1918. [1500 × 1091]

https://i.redd.it/69ndjcad0cp51.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/izo7y7/a_patient_wearing_a_flu_mask_during_the_flu/?utm_source=ifttt