Salvage men from P L A preparing wrecked steamer for raising of the Cragside in the Thame . Port of London Authority , wreck lighters have commenced salvage operations on the Tyne Tecs steamship company ' s vessel Cragside ( 458 tons ) which sunk in Gallions Reach , outside the Albert Dock after a collision with 8the S S Ladura ( 9 , 032 tons ) belonging to the British India Steam Navigation Company . Photo shows , Salvage crew from the P L A wreck lighter preparing the wreck steamer for raising . 9 August 1935