TW429363 Opening of the South Outlet, Sunderland Docks, 1856 (oil on canvas) by Thompson, Mark (1812-1875); 61x91 cm; Sunderland Museum & Winter Gardens, Tyne & Wear, UK; (add.info.: Gaily decked ships and boats are grouped in front of the main entrance of Sunderland Harbour in this view. The southern sea outlet of the Dock is to the left in the distance. It was opened in 1856 at the end of the extended South Dock. The Dock had been enlarged in 1855 to cater for the increasing coal trade. By this time, around 20 collieries were shipping coal from the South Dock;); 穢 Sunderland Museums ; British, out of copyright.