Item title reads - H.M. Submarine "Otus" the last word in underwater craft launched by Mrs Grace at Vicker's famous Yard. Barrow-in-Furness, Cumbria.
L/S of the crew standing on top of the submarine. M/S of people waving as it is launched and slips down into the water. M/S profile as it slides into the water with crew on deck. L/S of it sailing away. Various shots of the submarine with Union Jack flying.