- 1Control equipment schemes and details (GEC/2/2/3/1)
1966-1967, file - 2Cable schedule and wiring diagrams for Class AL1 & AL5 (GEC/2/2/3/2)
1966-1967, file - 3Electrical equipment drawings (GEC/2/2/3/3)
1965, file - 4Wiring diagrams for diesel electric locomotives (GEC/2/2/2/58)
1949-1961, file - 5Equipment layouts (GEC/2/2/2/59)
1953-1957, file - 6Control apparatus equipment drawings (GEC/2/2/3/4)
1971-1973, file - 7Arrangement of equipment (GEC/2/2/2/60)
1968-1969, file - 8Contactors for flameproof locomotives equipment (GEC/2/2/2/79)
1924-1961, file - 9Layouts of electrical equipment and pantograph general arrangements (GEC/2/2/2/80)
1928-1949, file - 10Sandbox, sandpipe and ballast arrangements and details (GEC/2/2/2/81)
1962-1969, file - 11Rhodesian 3'6'' Class 40 variant general arrangement (GEC/2/2/2/82)
1958, file - 12Class 87 bogie casting and bogie frame machining details (GEC/2/2/2/83)
1959, file - 13Underframe air and vaccum pipe arrangement (GEC/2/2/2/84)
1969, file - 14Class 86 cab desk and frame arrangements (GEC/2/2/2/85)
1963-1964, file - 15Class 86 cab arrangements (GEC/2/2/2/91)
1963-1965, file