Severn Bridge Junction signal box's Up & Down Platform line starting signals at the south end of platform 4 at Shrewsbury station. Monday 27th August 2007

Severn Bridge Junction signal box is located within the triangle of lines at the south end of Shrewsbury station, and is a London and North Western Railway type 4 design which was opened in June 1903 for the London and North Western and and Great Western Joint railway fitted with a 180 lever London and North Western Railway Tumbler frame, replacing an earlier box. The original bar and stud locking was replaced by Great Western Railway 5-bar tappet locking in 1952. And the signal box was listed as a Grade II listed building on 23rd January 1991

(Left to right) 26 signal (up & down platform line home to Wellington) and 20 signal (up & down platform line home to Hereford) are carried on a British Railways London Midland Region two doll balanced bracket on a tubular main stem which replaced a London and North Western Railway two doll balanced bracket signal latterly carrying Great Western Railway lower quadrant arms with a Great Western Railway calling on arms beneath them (27 beneath 26 signal, and 21 beneath 20 signal) in the early 1980s