"Ben Nunn" wrote in message
...

If the map has White City on the Central Line (as opposed
to Wood Lane) then it's post-1947. If Tooting Bec is no
longer called Trinity Road, then it's post-1950.

Since there are maps currently sold which show Aldwych station and Southwark
station as both open, you would have to correlate a lot of different bits of
evidence before you could be reasonably certain of the date of a historic
map.

--
John Rowland - Spamtrapped
Transport Plans for the London Area, updated 2001
http://www.geocities.com/Athens/Acro...69/tpftla.html
A man's vehicle is a symbol of his manhood.
That's why my vehicle's the Piccadilly Line -
It's the size of a county and it comes every two and a half minutes