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  • Silent Watchman (NKP765)

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Discussion of steam locomotives from all manufacturers and railroads

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 #956246  by railfilm
 
I visited some weeks ago the Hoosier Valley museum to see the NKP765. In the materials I found for the history of this locomotive I found this information:

The Silent Watchman, a special feature that recognized when the pony wheels derailed, still worked after sixteen years of disuse!


Does anybody knows what this feature exactly was? Thank you very much.