April 17, 2020 – CSXT 7005 leads Q025-17 past a crew working on a switch at Anaconda, south of Robards, Ky as it heads south on the Henderson Subdivision with a stack train.
In case you’re wondering about the “Begin OS sign,” from what I find on the web it is an old time term used by telegraph operators and train dispatchers to indicate that a train has passed a particular location on a subdivision. “OS” means “on sheet” referring to the fact that the train dispatcher has recorded train movement on the train sheet he maintained each 24 hour period. It also means Originating Station, the first station on each subdivision from which a train is authorized to occupy the main track.