LONDON UNDERGROUND tube map plan. Jubilee line u/c Heathrow open GARBUTT #2 1978

LONDON UNDERGROUND tube map plan. Jubilee line u/c Heathrow open GARBUTT #2 1978'London Transport Diagram of lines No 2. 1978' (678 2165M 1,250,000) The map shows the Central Line continuation between Epping and Ongar (closed in 1994); The Piccadilly Line spur to Aldwych (closed 1994); The line between Baker Street and Stanmore is shown as a branch of the Bakerloo line, as it was until it became part of the Jubilee line (shown as under construction) upon its opening in 1979. The Piccadilly extension to Hatton Cross and Heathrow