Following World War II, the coachbuilt cars favored by the most discriminating customers of the grand marques became increasingly rare in a world bent on mass production. As the 1960s approached, only a handful of one-offs actually made the transition from stylist’s maquette to sheet-metal sculpture. One such pinnacle of panache is coachbuilder H.J. Mulliner’s Design Number 7415, which stands as one of the most exotic and beautiful bodies ever worn by a Rolls-Royce rolling chassis. The 1959 Silver Cloud I HJM Drophead is a unique creation, with design details that include scalloped headlamps and outlandish styling cues more akin to Hooper or Freestone & Webb than the typically conservative Mulliner. The motorcar, which retains its original engine, was brought back to life through a painstaking 14-year restoration.