SN.20

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SN20 (left) and SN620 (right) Signals (Photo by Danny Scroggins)

This signal previously DM.72, but was converted into a controlled signal when Bourton Interlocking was commissioned on 1/10/77, as described in the following WON entry:

The signal was converted from a three-aspect head to a four-aspect head, and positioned on a new gantry at 04.50 on Monday 14 January 2002. The top yellow was not yet brought into use.