Running in board
From Wikipedia, the free encyclopedia
A running in board is a large sign showing the name of the railway station on which it is found. The signs are intended to help passengers discover their location when on a train entering the station, possibly whilst still moving at speed.
During the Second World War, running in boards in the United Kingdom were removed or obscured to prevent enemy spies or paratroopers from easily discovering their location.
[edit] References
Running In Boards - Southern e-group.