London (NFS) firefighter in breathing apparatus, WW2
Side view of the Mark IV Proto (oxygen) breathing apparatus set, showing the re-breather bag, mouthpiece, control valves and cooler. The firefighter is reading his pressure gauge, from which he can calculate the duration of the set
Picture No
10534761
Media ID
46849461
Size
2677px x 4000px
(3.0MB)
Credit
©London Fire Brigade / Mary Evans Picture Library
Source
London Fire Brigade Archive
Date
1942
