Delivered in October 1957 in lot no 30293 this car was originally part of a three-car London Midland Region set, of which there were 51 in this batch. It was originally allocated to Longsight Depot in Manchester (9A) but by 1968 it was at Buxton (9D) where it was to work Buxton-Manchester trains. Although its original partners were centre trailer M59162 and Motor Composite M50506 this vehicle worked for much of the latter part of its life with its current partner M50528. It was one of the last 104s in service and worked many of the farewell trains.
 
It was saved for preservation in 1993 and, after some restoration, originally ran in blue livery with full yellow ends and no headcode panel. Following that it gained the Blackpool "white stripe" livery for a season before being painted in lined green following heavy refurbishment in 1994, at which time its headcodes were replaced. 

During 2007 this vehicle was fitted with a new cab after the original became so rotten that it was unable to be repaired. The replacement is, however, difficult to distinguish from the original except that it has full-working route indicator blinds fitted. In the winter of 2008/9 much of the skin of the bodywork was replaced and, after this rebuild, it was turned out in the 1964 livery of blue with a small yellow warning panel.
This train has covered some 23,000 miles on the Llangollen Railway since it arrived in 1994 and has seen service on every year bar one, when it was under repair. It is extremely popular with enthusiasts due to the unique noise made by its exhausts.
The vehicle is powered by two Leyland 680 150hp engines, driving a fluid flywheel, a freewheel and a Wilson epicyclic gearbox. As it was withdrawn in an unrefurbished condition it retains its wood panelled interior, tungsten lighting and high back seats.