1931. Remarkably, No. 3170 was discovered in the early 21st century, having been used as a holiday home near Kirbymoorside for 70 years. It was bought in 2003 with a view to restoration and ran under its own power on the Embsay and Bolton Abbey Steam Railway in 2018. When the autocars ceased working the line reverted to steam haulage, with trains composed of a single "Bogie Brake third" coach worked by a NER Class E 0-6-0T or, occasionally, BTP 0-4-4T No. 189. On 9 July 1923 a quite different form of internal combustion-powered provision was deployed on some services in the form of the unique "Leyland" petrol railbus, a converted 26-seater NER road bus of conventional appearance for the period. This ran a wide-ranging diagram including the Cawood branch which came to a sudden end on 11 November 1926 when the railbus was destroyed by fire while refuelling at Selby. The immediate hiatus was filled by a combination of BTP tank locos and a "steam autocar". Research continues as to what form this took. On 1 May 1928 Selby received its first Sentinel steam railcars. No. 220 "Water Witch" may have been the first to work to Cawood, but it was destroyed in a collision near Doncaster on 9 June 1929. Better remembered were two similar cars, No. 225 "True Blue" and No. 273 "Trafalgar" which worked the branch until the last passenger service on Saturday 30 December 1929. The arrival of the Sentinels followed by closure to passenger traffic reduced then removed the need for small locomotives with continuous brakes to act as backup, so they were moved away from Selby between 1929 and 1932. Occasional special passenger trains, such as excursions to pantomimes in Leeds, used the line until 1946. By 1945 declining traffic, except in the "Campaign", i.e. harvesting time for key crops of potatoes and beet, meant a handful of 0-6-0Ts were regularly in charge, notably J71s 68285 and 68286 and veteran "Ironclad" J77 68406, being replaced by a J72 towards the closure of Selby shed on 13 September 1959. From then to closure in May 1960 the line's "flyweight" trains were in the hands of Class 03 diesel shunters, particularly No. D2063. Before the Second World War trains of 40 wagons of root crops were commonplace in the Campaign, with trains of 20 wagons still to be seen in the early 1950s, but by