Rupert Candy wrote:

This is truly obscure, but I couldn't resist posting it - I was in
Stockholm earlier this week and was flabbergasted to find, attached to
the ceiling of an "English pub" (which is incidentally a very common
beast there) a NSE-era (ie blue and white) line diagram from Watford
Junction, which showed the DC line service to Euston, plus peak-hour
services to Liverpool Street (*not* Broad Street). The sign also
showed Primrose Hill and the Croxley Green branch, so that might help
in dating it.

Did NLL services ever run into Liverpool St? I have a reasonable
digital photo of the sign if anyone's interested.

Details of the pub would be of interest to someone I know.