London Transport Underground Maps 1948-1956

All designs © Transport for London.

LONDON TRANSPORT RAILWAYS DIAGRAM OF LINES
This is the first of the post-war issues in pocket folder format, and refers to LONDON TRANSPORT RAILWAYS rather than UNDERGROUND. It has a detailed diagram of the network on the inner side, and a central area plan showing connections with Main Line termini on the reverse, which also has one panel forming the main folder title.
No.1 1948 146 214 G/4M (4R)		enlarge…
RAILWAYS DIAGRAM OF LINES Printed by Johnson, Riddle & Co. Ltd from this edition onwards.
After being reauthorised by the British Transport Commission, the Bakerloo line extension from Elephant & Castle to Camberwell was added to the diagram this year. This map also exists with the overprint CENTRAL LINE EXTENSION FROM LOUGHTON TO EPPING NOW OPEN (CHIGWELL LANE RENAMED DEBDEN)
JUNE 1949 449/858M/500,000.
Although the official announcmement of the abandonment of the Bushey Heath extension came in October 1950, it is obvious that the decision had been made much earlier, as the print code on the January 1950 map is April 1949. This map was issued with a tri-lingual (French/English/German) WELCOME paper wrap-around:
JAN 1950 449/858M/500,000.
In September 1950 the Bakerloo extension was deferred indefinitely by London Transport (resulting in its removal from the Underground map), and the Alexandra Palace branch of the Northern line was also deleted, despite hundreds of thousands of pounds already spent on construction and electrification, and the project nearing completion.
JANUARY 1951 1050/2438Z/1000M.
JANUARY 1953 852/1541Z/500M.		enlarge…
JANUARY 1953 453/923Z/250M(R)
JANUARY 1954 1253/2563D/250000/2 changes
The 1954 edition features a complete redrawing of the diagram. There are fewer diagonals, and the Circle line has become a rectangle, and in the east the District line no longer falls off the end of the world.
1954 754/1505D/350M 754/1545D/100M.
RAILWAYS DIAGRAM OF LINES AND STATION INDEX
The CENTRAL AREA INTERCHANGE STATIONS enlargment on the back was replaced with an index of all stations on the Underground. This change is also noted on the diagram’s cover.
1955 355/542D/500,000
1956 256/352M/200,000
1956 656/1427D/300,000