Thames from Blackfriar's Bridge

We went to the Postal Museum today...on the bus from Southwark Tube station, over Blackfriar's Bridge and saw St Paul's and its turrets from the bus, in extras.   Also in extras are the bicycle used to deliver mail in days gone by and in later years the Royal Mail Bus which delivered mail to country folk and also delivered country folk to town if they didn't have their own transport.   We then went on the underground tiny train which transferred mail all around London.    This service ended in 2003.