_:vb6855460 "Signal M123 is a conventional 3-aspect colour light with three Junction Indicators - commonly known as 'feathers'."@en . _:vb6855460 "2020 December 30, David Allen, \u201CUnusual signals...: Morpeth Signal M123\u201D, in Rail, page 64:"@en . "10" . _:vb6855459 . . _:vb6855460 . _:vb6855459 "(rail) A junction indicator attached to a colour-light signal at an angle, which lights up, typically with four white lights in a row, when a diverging route is set up."@en .