Twentieth century manual of railway and commercial telegraphy (1905)
Meyer, Frederic Louis, b. 1875 · Chicago, New York, Rand, McNally & Company · leaf 120
Rear of train by night when on siding.Markers, 1 — 1. … Reir of train by night while running.Red to Rear.Green to Sides and Front. V H 7 e Locomotive running forward without Locomotive running forward without cars by night. cars by day. Markers, 1 — 1. 118 THE TWENTIETH CENTURY
Telegraph
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