UM.70: Difference between revisions

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Revision as of 15:04, 4 August 2014

UM.70 became an automatic signal (from semi-automatic?) on 2 August 1970.

SN Won AKOverton-1.jpg

Retrieved from ‘https://reference.swindonpanel.org.uk/index.php?title=UM.70&oldid=754’