The Bombay was conceived in the early-1930’s to replace Vickers Valentia WW1 of vintage biplane technology. Designed to fulfil bomber-transport duties in colonial “policing work” in the Middle East and India. Due to its manufacturing difficulties and other models priority, the Bombay didn’t enter service until 1939. Only 51 of the 80 ordered were produced because by then they were definitely obsolescent. The Bombays served with distinction in the Middles East mainly, against foes much more serious than those originally envisaged.
Sublime late-1930’s Shell ad. By the way, the artist seems to have had cloning powers: the prototype was the only Bombay equipped with wheel spats.