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Ambergate or 'Toadmoor' Tunnel on the old North Midland Railway.
About this image
Built c 1840 in an elliptical shape by the North Midland Railway. It is locally named 'Toadmoor Tunnel'. Regarding the semaphore signals on the left: the 'Starter' and 'Distant signals' are both lowered, meaning that the approaching train was given a clear run (note these were the lower-quadrant type of signal, as opposed to the upper-quadrant design standardised by British Railways). Fitted behind each signal is a white backing. Known as sighting boards they were an observational aid against a complex, or sometimes a gloomy background. Further left the other Distant signal (these were identified by their 'fish-tailed' appearance) is positioned lower down on its post than the one mentioned above. This means it refers to a subsidiary line. Consequently this group are collectively known as 'splitting' signals, as lines diverge at the junction ahead. Mineral-waggons painted dove-grey were of the loose-coupled type. This rake appear to have been 'set-back' (i.e. reversed) into a siding.