£500 to £750

This map of the London underground was published shortly before changes were made to the colour coding of the Central and Bakerloo Lines. Beck’s 19...

This issue of Beck’s 1934 map saw a slight increase in size of the card folder given away to passengers.  Beck’s diagram is one of the most innovat...

This pictorial map of London is generally dated 1931 in institutional catalogues, but here Geographia’s date-code for November 1934 is worked into ...