Battleships at sea - they release clouds of black smoke to conceal themselves.
Various shots of battleships or frigates at sea.
"Every year the navies go one better than the year before...better and bigger smokes is the aim of these protecting ships." L/S of large cloud of black smoke emerging from one of the ships. Ship passes the camera with large clouds of smoke billowing from its funnels. Another ship passes by - smaller than the other but still producing lots of smoke. They are laying a smoke screen I presume.
"Denser than ever, until the whole sea appears blotted out behind the saving cloud - " The ship and its smoke are seen from on board another ship. L/S of the smoke cloud on the water.
Was an item in Pathe Pictorial issue number 667.