Vincent Black Shadow and C bikes having 1⅛" Amal 289 carburettors and Series D bikes having 1⅛" Amal Type 389/10 units. While other contemporary motorcycles tended to be polished and chromed, founder Philip Conrad Vincent (PCV) decreed that the Black Shadow engine itself be black. The engine's signature colour was achieved by applying a "pyluminising" coating of chromate anti-corrosion primer over which a layer of Pinchin & Johnson black enamel was added. The part was then baked in an oven for 2 hours at . Although some have claimed that the black finish increased the rate of heat rejection from the engine, its
The Black Prince (novel) Murdoch's influences for this novel is the Shakespeare play Hamlet. It is openly referenced and discussed throughout, especially by Bradley. It is noted in the Post-Scripts that Bradley Pearson shares initials with the Black Prince, the title of Pearson's fictional as well as Murdoch's real work. Also present is the influence of Freud, especially through the frequent sexual imagery centred on recurrent references to the phallic Post Office Tower. Bradley's possible proxy admission of homosexuality is made possible through his seeming self-identification with Shakespeare throughout his narrative, and in his claiming both Hamlet and Shakespeare were homosexual. It is strengthened