British Railways promotional leaflet "3,300 H.P. 25kV A.C. Electric Locomotive buit by British Railways Doncaster Works." Contained within the card cover are 6 external and cutaway views of locomotive no. E3056 printed onto ploythene. Each view has a key explaining the different components. 3,300 H.P. 25kV A.C. Electric Locomotive buit by British Railways Doncaster Works circa 1960
