A resident of Hextable in Kent, invented a gas proof pram in which a baby could be kept safe during an air raid. The pram has an air-tight lid provided with a window and with a gas mask filter. A rubber bulb at the rear is squeezed at intervals forcing the stale air out and replacing it with fresh air drawn in through the filter. Date: 1938. (Photo by Mary Evans Picture Library/Caters News)
