A huge 32,000 ton dock is towed along by 6 tugs to Portland.
Item title reads - The Grand Fleets "Hospital". 32,000 ton dock - capable of holding biggest battleship towed 450 miles in 4 days by 6 Admiralty tugs. Portland, Dorset.
L/S of the huge dock, the camera pans across the tugs towing it. Various shots of the dock as it moves slowly along.