Photo: Transcription service Manufacturer E J Jackson Photo-services Industrial Manufactured for BXL Date 1959 (circa)
Photo: Centenary card Manufacturer E J Jackson Photo-services Industrial Manufactured for BXL Date 1959 - 1969 (circa)
Photo: Teleprinter room Manufacturer E J Jackson Photo-services Industrial Manufactured for BXL Date 1959
Photo: Earth leakage circuit Manufacturer E J Jackson Photographic Illustration Manufactured for BXL Date 1950 - 1959 (circa)