Bofor gun training crew on training.
Unused / unissued material - dates and locations unclear or unknown.
Various shots of Bofor gun crew on training. They follow imaginary aircraft but do not fire. Crew is wearing gas capes and they put their gas masks on. These are presumably BEF (British Expeditionary Force) on training in France.
Note: Although the film is quite damaged, there are some nice C/U shots of the men navigating and putting their gas masks on.