- 1Lamps, lights and electrical details (GEC/2/2/2/174)
1960-1970, file - 2Danish State Railways schematic diagrams (GEC/2/2/2/177)
1931-1936, file - 3Overseas railways electrical schematics (GEC/2/2/2/178)
1933-1971, file - 4Mechanical details (GEC/2/2/2/202)
1956-1964, file - 5Electrical equipment including motor connection boxes (GEC/2/2/2/415)
1926-1939, file