Signal M123 is a conventional 3-aspect colour light with three Junction Indicators - commonly known as 'feathers'.

Nothing but mirth can conquer fortune's spite; No sky is heavy, if the heart be light: Patience is sorrow's salve; what can't be cur'd, So Donald right arreads, must be endur'd.

And then we stroll'd / From room to room: in each we sat, we heard / The grave Professor. … / Till like three horses that have broken fence, / And glutted all night long breast-deep in corn, / We issued gorged with knowledge, …

Taking a full-page advertisement in the New York Times, the New Haven counter-attacked with vigour.