Following the popularity of other historical railway atlases, this is an enlarged edition of the 'Pre-Grouping Atlas' combined with the 'Railway Clearing House Junction Diagrams'. The pages show a map of the British railway network for a particular region immediately prior to the 1923 grouping, showing the owners of the line, and each map will be accompanied detailed drawings published by the Railway Clearing House in 1914 of the junctions within that region.