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Science Museum Group Collection
© The Board of Trustees of the Science Museum
Rack of equipment from Empress (West Kensington) PCM tandem
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Rack of equipment from Empress (West Kensington) PCM tandem
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Rack of equipment from Empress (West Kensington) PCM tandem
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Rack of equipment from Empress (West Kensington) PCM tandem
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Rack of equipment from Empress (West Kensington) PCM tandem
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Rack of equipment from Empress (West Kensington) PCM tandem
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Rack of equipment from Empress (West Kensington) PCM tandem
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Rack of equipment from Empress (West Kensington) PCM tandem
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Rack of equipment from Empress (West Kensington) PCM tandem
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Rack of equipment from Empress (West Kensington) PCM tandem
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Rack of equipment from Empress (West Kensington) PCM tandem
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Rack of equipment from Empress (West Kensington) PCM tandem exchange, made by the Post Office Research Centre, Dollis Hill, London, England, 1968. In public service 11 September 1968 to 21 May 1975
Rack from Empress PCM Tandem Exchange, made by the Post Office Research Centre, Dollis Hill, London, England, 1968
Circuit Boards from Empress PCM Tandem Exchange, made by the Post Office Research Centre, Dollis Hill, London, England, 1968
Circuit board ROUTINER I, shelf 5, pos 4, from the Empress Exchange (West Kensington) PCM tandem exchange, made by the Post Office Research Centre, Dollis Hill, London, England, 1968
Circuit board ROUTINER II, shelf 7, pos 6., from the Empress Exchange (West Kensington) PCM tandem exchange, made by the Post Office Research Centre, Dollis Hill, London, England, 1968
Circuit board STORES 007, shelf 3, pos 6., from the Empress Exchange (West Kensington) PCM tandem exchange, made by the Post Office Research Centre, Dollis Hill, London, England, 1968
Circuit board S.BUF 035, shelf 9, pos 6., from the Empress Exchange (West Kensington) PCM tandem exchange, made by the Post Office Research Centre, Dollis Hill, London, England, 1968
Circuit boards, combined, REG B 003 and 3B, shelf 9, pos 4., from the Empress Exchange (West Kensington) PCM tandem exchange, made by the Post Office Research Centre, Dollis Hill, London, England, 1968
Circuit board, shelf 8, pos 3. from the Empress Exchange (West Kensington) PCM tandem exchange, made by the Post Office Research Centre, Dollis Hill, London, England, 1968
Black pipe and mounting bracket from Empress PCM Tandem Exchange, Post Office Research Centre, Dollis Hill, 1968
Miscellaneous parts from exchange and circuit boards, including detached labels, screws and knobs. From Empress PCM Tandem Exchange, Post Office Research Centre, Dollis Hill, 1968
