Card on the window of the 1938 stock
Introduction
The photograph on this page of Card on the window of the 1938 stock by Robert Lamb as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk

Image: © Robert Lamb Taken: 30 Aug 2009
This is the card that made me know the exact career of the 1938 train on regular passenger service on the Northern line. I think it's pretty self-explanatory!