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Author:	Rick A [ Tue Apr 06, 2021 12:10 pm ]
Post subject:	Switch Signals article 1892
An article from the 1892 Locomotive Engineering journal about Switch Signals. Attachments: locomotiveengine09hill_0339 1892.jpg [ 177.19 KiB | Viewed 2295 times ] locomotiveengine09hill_0340.jpg [ 212.92 KiB | Viewed 2295 times ] locomotiveengine09hill_0341.jpg [ 219.41 KiB | Viewed 2295 times ]

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Author:	Rick A [ Tue Apr 06, 2021 12:11 pm ]
Post subject:	Re: Switch Signals article 1892
The last 3 pages Attachments: locomotiveengine09hill_0342.jpg [ 187.76 KiB | Viewed 2294 times ] locomotiveengine09hill_0343.jpg [ 258.16 KiB | Viewed 2294 times ] locomotiveengine09hill_0344.jpg [ 197.02 KiB | Viewed 2294 times ]

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Author:	Rick A [ Mon Apr 12, 2021 11:38 am ]
Post subject:	Re: Switch Signals article 1892
Here are a couple of other old volumes concerning signaling. Block Signal Operation 1902 by William Lloyd Derr https://archive.org/details/blocksignal ... 3/mode/2up The Block System of Signaling on American Railroads: The Methods and ... 1901 by Braman Blanchard Adams https://archive.org/details/blocksystem ... ch+signals

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