SN.31: Difference between revisions
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It could display red or green. | It could display red or green. | ||
==AWS Fitment== | |||
The signal was fitted with an AWS ramp in October 1971. | |||
[[File: 1971-01.png | border]] | |||
Latest revision as of 12:40, 9 November 2014
Back to Control Functions
Creation
This signal was brought into use in December 1970:
It could display red or green.
AWS Fitment
The signal was fitted with an AWS ramp in October 1971.
