Ministry of Home Security poster issued c.1940 with a quote by Herbert Morrison.
Incendiary bombs were dropped in clusters to spread fires. In September 1940, a Fire Watchers Order was issued compelling men to fire watch for a maximum of 48 hours per month. Factories and large buildings were responsible for providing their own firewatchers.
Fall in the Fire-Bomb Fighters!-poster 1940
TUC Library Collections, London Metropolitan University