Vincent Black Shadow to the new specifications. The prototype Black Shadow had engine number F10AB/1B/558 in frame R2549, and was completed on 16 February 1948. The bike was road tested by Charles Markham in Motor Cycling May 1948, during which test the bike was reported to have reached . The Black Shadow was officially introduced at the 1948 Motorcycle Show at Earls Court in London. The Black Shadows were built with the same labour-intensive hand-fitting of bearings and major engine parts that Vincent had used prior to the war. Official records say that 1774 Vincent Black Shadows were made. Vincent also built 15
Black Prince Buses of routes centred on Morley in competition with Yorkshire Rider. A variety of second-hand vehicles were acquired to operate the routes, and a livery of red and yellow introduced. By 2004, Black Prince operated a fleet of 40 vehicles on a network of routes around Leeds, with an annual turnover of almost £3 million. Many of its routes competed with Yorkshire Rider's successor First Leeds. In May 2005, FirstGroup announced its intention to purchase Black Prince. Although this move reduced competition in Leeds, it was approved by the Office of Fair Trading as Black Prince had intended to close if