Description: This picture appears in History of the Moira Collieries by P Beaumont, page 83. The Church Gresley pits were sunk in 1829 by Gregory of Repton and were purchased by the Marquis of Hastings a few years later. The 'new pit' was sunk in 1834 and the 'upcast' in 1865. An early example of a vertical winding engine was erected by Thornewill & Warham of Burton-on-Trent at the Church Gresley Colliery in 1844, and can be considered as the typical winding engine of the period. It had a 36 in. diameter cylinder x 5 ft. stroke, fitted with improved valve expansion gear, steam brake and reversing gear, and the various parts were made adjustable so as to take up wear. The drums could take either flat or round ropes. It is a tribute to the design and sound engineering practice of the makers that this particular engine was not dismantled until 1941, almost 100 years after its installation. (information from the excellent Durham Mining Museum website www.dmm.org.uk)