File:US&S Model 14 pwr interlocking w model board bulletin 100.jpg
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US&S_Model_14_pwr_interlocking_w_model_board_bulletin_100.jpg (474 × 556 pixels, file size: 239 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:05, 1 May 2011 | 474 × 556 (239 KB) | commons>Caseyjonz | == Summary == {{Information|Description={{en|1=View of Model 14 power interlocking machine}} |Source= [http://books.google.com/books?id=BAoqAQAAIAAJ&pg=PA171#v=onepage&q&f=false "The Type 'F' Electric Interlocking Sys |
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