The accident took place almost exactly in line with No. 1 Midland Terrace. The locomotive(s) involved (there appears to be a second one on its side and nose-to-nose with the loco remaining upright, numbered D8189) was known as an 'English Electric Type 1'. Members of this short-lived and not very powerful class were often to be seen in pairs (known as 'double heading') on coal trains in this area. The locomotive's diesel-electric engine made a distinctive whirring sound. Note the British Rail 'double arrow' logo on the cab-side. Nearest the camera is a water column (complete with its canvas bag) formerly used to water steam engines. Most coal traffic was carried in the 16 ton capacity mineral-waggons shown here.