Twentieth century manual of railway and commercial telegraphy (1905)
Meyer, Frederic Louis, b. 1875 · Chicago, New York, Rand, McNally & Company · leaf 119
Locomotive running backward bynight without cars.Carrying Signals for Following Train.Green Lights and Flags at 1 — 1 Signals.2—2 Markers. Locomotive running backward by night without cars. Running Extra. Denoted by White Lights and Flags at 1 — 1. Markers at 2 —2. J D o -OK d … Locomotive running backward by night without cars.Signals for Train Following areGreen Light and Flag at 1.2—Markers. Locomotive running backward byday without cars.Carrying Signals for Train Following.Denoted at 1 by Green Flag.2 —Markers. MAI^UAL OF TELEGRAPHYMarkers. 117
Telegraph
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