History: Police officer wearing a face mask during the London smog in 1952 [1600x1011]

https://i.redd.it/c64ost6zk6o61.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/m96jl3/police_officer_wearing_a_face_mask_during_the/?utm_source=ifttt