History: British soldiers wearing gas masks while manning a Vickers machine gun crew during the Battle of the Somme ca. 1916 [803x535]

https://i.redd.it/lwwbk5024ol71.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/pib8qs/british_soldiers_wearing_gas_masks_while_manning/?utm_source=ifttt