In 1939, Bedford introduced a new range of goods models, which included the 'O', with characteristic 'bullnose' grille. The passenger version was named the 'OB' and Duple modified the Hendonian body to fit the chassis, which at 14 ft 6 in, was longer than the WTB. With the advent of World War II, Bedford production was turned over to the war effort, with only 73 OB chassis produced, and it was not until after cessation of hostilities that the Bedford OB with Duple Vista bodywork was to become a familiar sight on British roads.