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Summary
| Description |
English: View of position light railroad signal. |
| Date | |
| Source | "The Type 'F' Electric Interlocking System." Bulletin 100. p. 54. |
| Author | Union Switch & Signal Co., Swissvale, Pennsylvania, USA |
Licensing
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:23, 21 April 2011 | | 208 × 281 (60 KB) | Caseyjonz | == Summary == {{Information |Description={{en|1=View of position light railroad signal.}} |Source=[http://books.google.com/books?id=BAoqAQAAIAAJ&pg=PA153#v=onepage&q&f=false|"The Type 'F' Electric Inter |
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