Buoys mark sunken Cgragside in the Thames . Only the masts , the top of the funnel and one of the ship ' s lifeboats are visible in Gallion ' s Reach , outside the Albert Dock , of the Tyne Tees Steamship Copany ' s vessel Cragside , ( 458 tons ) , which sunk after a collision with the S S Madura ( 9 , 032 tons ) belonging to the British Indies Steam Navigation Company . Photo showws , Wreck Buoys marking the positin of the sunken Cragside . 9 August 1935