Pocket Underground map, 1910.

This geographic paper edition of the Underground map shows the Railway lines belonging to the Underground Group as well as the Central London Railway and Metropolitan Railway lines, no other railway lines or tramway routes are included. Each line is represented by a different colour on the map. Other places of interest are shown, including parks, exhibition grounds and places of interest, these are marked in blue with a number relating to an index on the reverse. This map shows the Central London Railway extension between Bank and Liverpool Street under construction as a broken blue line. Lines which are served by two railways use the colours of both lines and interchanges are marked by a solid circle in the line colour. On this map Gower Street Station is now called Euston Square, Bishopsgate Station has been renamed Liverpool Street and Praed Street is now Paddington (Praed Street). The border of this map is green with the title in white. The reverse is printed in green and brown and has the index for places of interest shown on the map, a list of railway termini, there is also a theatre plan and key.