A remarkable group of 50 maps of the London Underground, with highlights including: the rare first state of the first edition of Harry Beck's iconic map; an unusual Hans Schleger map, printed in brown, under war-time rationing to colour-printing; the 1949 map that Beck considered to be his finest work; and, appropriately, a 2005 map with the Frieze Art Fair cover.

1. Fred H. Stingemore, 'Map of London's Underground Railways', 1932 - the final pre-Beck edition of the Underground map, it shows the completed Piccadilly line extension north of Finsbury Park and west of Baron's Court.

2. Harry Beck, 'Map of London's Underground Railways', 1933 - rare first state of the first edition of Beck's iconic map of the London Underground. Beck's map was first published as a trial, with the public invited to comment on the new design, as is explained on the verso of the map: "A new design for an old map. We should welcome your comments. Please write to Publicity Manager, 55, Broadway Westminster, S.W.1".

3. Harry Beck, 'Railway Map', 1934 - with the East London Railway, which ran from Shoreditch to New Cross, now incorporated into the Metropolitan line, and the Central and Bakerloo lines brown and red, respectively.

4. Harry Beck, 'Railway Map', 1935 - a diagram of interchange stations in central London now appears on the verso.

5. Harry Beck, 'Railway Map', 1936 - as the 1935 edition, this example, too, has a diagram of interchange stations in central London on the verso.

6. Harry Beck, 'Railway Map', 1937 - the last map to show the Metropolitan line as distinct from the District line until 1949.

7. Hans Schleger, 'Underground Railway Map', 1938 - the first tube map to be designed by poster artist Hans Schleger, as "Zero". It shows the planned extensions to the Northern, Central, and Bakerloo lines, marked with dashed lines - plans that would be scuppered by the outbreak of the Second World War. To the verso are two maps of London above ground, the first extending from Green Park to Charing Cross, and the second from Blackfriars to Liverpool Street. Schleger's redesign of the tube map would be a short-lived departure from Beck's iconic scheme, with editions published only between 1938 and 1941.

8. Hans Schleger, 'Underground Lines', 1939 - a further example of Schleger's design.

9. Hans Schleger, 'Underground Lines', 1940 - this is the second of only three maps of the London Underground, printed during the Second World War, with all the tube lines printed in brown, due to restrictions on colour-printing. Schleger's maps of London above ground, which feature on the verso, no longer have the precise location of tube stations marked, perhaps to protect from German bombing.

10. Harry Beck, 'Underground Lines', 1941 - the first tube map to be designed by Beck after Schleger's interlude, though still with the red Schleger cover, and the only one of Beck's maps to use the interlocking ring motif to illustrate interchanges.

11. Harry Beck, 'Underground Lines', 1943 - with the proposed extensions to the Central and Northern lines removed, interrupted by the War (although the tunnels, already dug for the Central line, would be used as a secret factory by the Plessey defence electronics company).

12. Harry Beck, 'Underground Lines', 1945 - Beck's final map to be published during the Second World War, with a note about the closure until further notice of Aldwych Station and the suspension of services between Earls Court and Willesden Junction and between Addison Road and Latimer Road.

13. Harry Beck, 'Underground: Diagram Of Lines', 1946 - one of the first tube maps to be published after the end of the Second World War, showing proposed extensions to the Northern and Central lines, some of which would never be completed.

14. Harry Beck, 'Underground: Diagram Of Lines', 1947 - the Central line now extends east to Leytonstone and west to Greenford.

15. Harry Beck, 'London Railways Transport: Diagram Of Lines', 1948 - this is the last map not to show the Circle line in yellow, with, instead the Inner Circle distinguished from the rest of the District line by green lines outlined in black.

16. Harry Beck, 'Railways: Diagram Of Lines', 1949 - the first map to show the Circle line in yellow and to show the Metropolitan line in magenta, once more, to distinguish it from the District line. Harry Beck considered this to be his best work, according to his biographer, Ken Garland.

17. Harry Beck, 'Railways: Diagram Of Lines', 1950 - with proposed extensions to the Northern, Central, and Bakerloo lines.

18. Harry Beck, 'Railways: Diagram Of Lines', 1951 - with the proposed extensions to the Bakerloo and Northern lines no longer shown, deemed not to be financially viable.

19. Harry Beck, 'Railways: Diagram Of Lines', 1953 - this example is virtually identical to the 1951 edition, with few extensions made to the Underground, amid post-War austerity.

20. Harry Beck, 'Railways: Diagram Of Lines', 1954 - with a new shape to the River Thames.

21. Harry Beck, 'Railways: Diagram Of Lines And Station Index', 1955 - the first map to include a grid and an index of all stations on the reverse.

22. Harry Beck, 'Railways: Diagram Of Lines And Station Index', 1956 - with, as the 1955 edition, a background grid and index.

23. Harry Beck, 'Underground: Diagram Of Lines And Station Index', 1957 - the roundel logo has changed from "Railways" to "Underground".

24. Harry Beck, 'Underground: Diagram Of Lines And Station Index', 1958 - virtually identical to the 1957 edition.

25. Harry Beck, 'Underground: Diagram Of Lines And Station Index', 1959 - one of the last editions of the trifold tube map to be designed by Beck. The River Thames is now named on the map.

26. Harry Beck, 'Underground: Diagram Of Lines And Station Index', 1960 - the final edition of the trifold pamphlet maps designed by Harry Beck for the London Underground.

27. Harold Hutchison, 'Underground: Diagram Of Lines And Station Index', 1961 - the first tube map designed by Hutchison, with London Underground interchange stations marked with circles and British Railway interchange stations marked with squares. Sunday and off-peak weekday station closures are also marked.

28. Harold Hutchison, 'Underground: Diagram Of Lines And Station Index', 1962 - virtually identical to the 1961 edition.

29. Harold Hutchison, 'Underground: Diagram Of Lines And Station Index', 1963 - Hutchison's final tube map.

30. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1964 - Garbutt's first tube map, with London Underground interchange stations marked with a circle and British Railway interchange stations marked with a circle with an internal dot.

31. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1965 - with the Victoria line underway, and the section between Finsbury Park and Drayton Park closed during its construction marked with a plus-sign.

32. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1966 - virtually identical to the 1965 edition.

33. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1967 - virtually identical to the 1966 edition.

34. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1968 - with the Victoria line now opened, between Walthamstow Central and Highbury & Islington, and its projected route from Highbury & Islington to Victoria illustrated with dashed lines.

35. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1969 - the first tube map to show the newly-opened Victoria line, running all the way from Walthamstow Central to Victoria.

36. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1970 - British Rail interchange stations are now shown with the "double arrow" British Rail logo.

37. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1971 - the Victoria line is now shown as extending south to Brixton.

38. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1972 - with the London Underground logo now appearing as an all-red roundel.

39. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1973 - Strand station is marked through with a cross, with a note that it will be closed from June 1973 until 1976.

40. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1974 - with a note "Strand station closed for rebuilding".

41. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1975 - showing the planned extension of the Piccadilly line from Hatton Cross to Heathrow Central.

42. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1976 - Charing Cross station has been renamed as Embankment.

43. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1977 - showing the North London Line, running from Richmond to Broad Street.

44. Paul E. Garbutt, 'Underground: Diagram Of Lines And Station Index', 1978 - with the extension of the Piccadilly line from Hatton Cross to Heathrow Central now opened, and a section of the Jubilee line, from Baker Street to Trafalgar Square, shown as under construction.

45. Paul E. Garbutt, 'London Tube: Diagram Of Lines', 1979 - the last tube map to be produced by Garbutt, showing the Jubilee line, now running from Stanmore to Charing Cross.

46. London Underground, 'Pocket Map', 1985 - with an index of stations, including a key to explain which stations have car parks and which bicycle storage facilities, on the reverse.

47. London Underground, 'Tube Map', 1995 - showing the proposed extension of the Jubilee Line from Green Park to Stratford.

48. London Underground, 'Tube Map', 2005 - featured on the cover is 'You Are in London' by Emma Kay (2004), the image commissioned by London Underground's Platform for Art programme, in collaboration with Frieze Art Fair.

49. London Underground, 'Tube Map', 2015 - featured on the cover is 'Design for a magnificent London Underground Grand Pendulum in gilt bronze', by Pablo Bronstein (2015).

50. London Underground, 'Tube Map', 2025 - featured on the cover is 'Map Projections', by Agnes Denes (2025).