1960s1963B+Wblack and whitebolt cuttersbuildersbuilding sitebuildingsconstructionconstruction crewcranesengineeringequipmenthard workhousingimprovementlabourersLondonmanagementnewon-siteoutsidephysicalpost-warpublic worksrebarsregenerationscaffoldingstreetSwinging Sixtiesworking life