Device which goes inside hats to keep the wearer cool in hot weather.
Ice to prevent guardsmen fainting, Welling, Kent.
M/S man taking seat next to second man on park bench. First man looks very hot and tired: he wipes his brow, his tie is undone and he carries his hat. The second man looks very cool. C/U of small thermometer on second man's hat. The second man takes off his hat and shows the first man a contraption inside the hat: a small container full of dry ice that keeps the wearer cool. The device was invented for use by Guardsmen parading on hot days.