In article , Roland
Perry wrote:

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. Before the
bomb-damaged building was demolished, the station entrance could still be
seen. The "Post Office" in question was King Edward Building which
contains/was on the site of the National Postal Museum. The station
entrance was moved from the western to the eastern end of the platforms
and escalators installed in place of lifts. St Pauls is like Chancery
Lane, with one line on top of the other to fit within the public highway
above.

--

Jock Mackirdy
Bedford