Pocket Underground map, by H C Beck, 1933.

This edition of the diagrammatic style of Underground map designed by H C Beck, shows the opened section of the Piccadilly line between Enfield West and Cockfosters. The District line is only shown as far as Bow Road, with an arrow to indicate that the line continues eastwards, the Metropolitan line also has an arrow to show that the line extends to the West of Rickmansworth, with a list of the stations to Aylesbury. The District line is not shown between Ealing Common and South Harrow and the line between Hammersmith and Acton Town is drawn at a 45 degree angle. The Metropolitan line to Stanmore has also been changed to 45 degrees, as well as the sections at Paddington Praed Street and Covent Garden. There are changes in station names, Praed Street is renamed Paddington Praed Street, and the closed British Museum is no longer shown. Interchanges are represented as circles and the escalator connection between Bank and Monument is highlighted in a red box. The logo on the map has been amended with the title London Transport being added inside the circle of the roundel, above and below the UndergrounD bar.
On the reverse are lists of places of interest and theatres.