Green ring binder with information for working with electrified lines. See photos for details.
British Railways Working Instructions for A.C. Electrified Lines 1967
British Railways Working Instructions For AC Electrified Lines 1986 B.R. 29987
British Railways Working Instructions for A.C. Electrified Lines 1975 Railwayana
British Railways Working Instructions For A.C. Electrified Lines 3rd May 1975
