Switchgear and transformer designed by S. Z. de Ferranti, from the 10kV/2.5kV electricity substation that operated between 1891 and 1933 at Trafalgar Square/Cockspur St., London, supplied from Deptford power station. (Used in partial reconstruction of the substation displayed between about 1957 and 1977.) Switchgear and transformer designed by S. Z. de Ferranti 1891
