UM.81
Revision as of 13:51, 9 November 2014 by Danny (talk | contribs) (Created page with "Back to Control Functions ==Conversion from semi-automatic to automatic== The signal was converted from semi-automatic to automatic when Hay Lane Ground Frame was re...")
Back to Control Functions
Conversion from semi-automatic to automatic
The signal was converted from semi-automatic to automatic when Hay Lane Ground Frame was recovered in January 1974.