In message , at 14:02:51 on Sat, 23
Jul 2005, Jock Mackirdy remarked:
At the bottom of the map, the route of the Waterloo and City line, and
in the middle the "Post Office" after which today's St Paul's station
was originally named. The station building itself is shown to the north
of Newgate St; today probably in the middle of a traffic island next to
the entrance to the BT HQ.

Post Office station was part of/adjacent to the Central Telegraph Office
on the NE corner of Newgate Street and King Edward Street.

The map shows the station on the NW corner.

http://www.loveplums.co.uk/Tube/HolbornViaduct.html
--
Roland Perry