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Signalling & Maintenance: British Railways
The language of railway signalling, railway maintenance, British railways, 1919, 30 pages, "white is right, red is wrong, green is gently go along", kite signal, disc, semaphores, electric telegraph, signal box, station bells, crossing gates, foggy weather, upper quadrant, three position, cuttings, embankments, platelayers, tunnels, sleepers, ties, chairs, ballast
31 pages, Kindle Edition
Published August 4, 2017
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