This view from Observatory Park along Lower Fort Street, The Rocks, remains relatively unchanged, due largely to the efforts of the Rocks Residents Group. The group formed in 1971 to oppose plans by the Sydney Cove Redevelopment Authority to demolish and redevelop the area with high-density residential dwellings. They requested the support of the Builders Labourers Federation, which imposed a Green Ban on development in the area that was ultimately successful in preserving much of the streetscape. The Sydney Harbour Bridge, just twenty years old when this work was painted, celebrated its 80^th anniversary on 19 March 2012.