Different flare signals are fired from the deck of the "Worcester" during safety trials.
Item title reads - "For those in Peril...." Important trials of improved life-saving apparatus on the Worcester. Greenhithe, Kent.
Various men in uniform are stood on deck, they fire a flare from an instrument on the ground. C/U of the instrument. M/S of a man firing a flare gun from the deck out into the sea, M/S of another man firing a larger flare while others watch.