Poster, General Post Office, Post Office Underground Mail Train - London by Lili Rethi, 1935. Depicts a mail train at a station with Post Office workers loading and unloading containers of mail. The London Post Office Railway operated from 1927 to 2003, and was used to move rail between sorting offices on narrow gauge, driverless trains. Format: double royal. Dimensions: 40 x 25 inches, 1016 x 635mm.
