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WWI. "English observation officer with a newly invented English gas mask" Photo;Scherl/Süddeutsche Zeitung

WWI. "English observation officer with a newly invented English gas mask" Photo;Scherl/Süddeutsche Zeitung

A photograph of two fire fighters wearing breathing equipment, taken in December 1938 by Edward G Malindine for the Daily Herald.        The two members of the London Fire Brigade are shown wearing different types of breathing equipment. The man on the left wears the oxygen-type breathing system used at the time. The man on the right is wearing a French system working using compressed air.

A photograph of two fire fighters wearing breathing equipment, taken in December 1938 by Edward G Malindine for the Daily Herald. The two members of the London Fire Brigade are shown wearing different types of breathing equipment. The man on the left wears the oxygen-type breathing system used at the time. The man on the right is wearing a French system working using compressed air.