After the mail train to be robbed leaves the station, supposedly Edinburgh Waverley on the East Coast Main Line on the Eastern Region of British Railways but obviously not, as the engine is a London Midland Region one, various different London Midland Region engines are shown in charge of the same train. The scenes with different engines on the same train are repeated about 20 minutes from the end of the film.
The mail train robbed is described as an Edinburgh to London train, which would run on the East Coast Main Line, which is part of the Eastern Region of British Railways. All the locomotives shown in the film are of London Midland Region of British Railways origin. The train runs into Euston Station, London, which is the terminus of the West Coast Main Line, on the London Midland Region of British Railways, running from Glasgow to London. The East Coast Main Line running from Edinburgh terminates at Kings Cross Station, London.
The narration of the film consistently refers to "the railroad", an American term. The film is set throughout in Great Britain, where the term of reference used should be "the railway".