"Nigel " wrote in message
...

Thanks for that John,

Your'e welcome. Incidentally, I just stumbled on this wonderful image...

http://www.museumoflondon.org.uk/MOL...xhibits/1920s/

--
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