Generous thanks to François-Xavier Busnel @ Club James Bond 007 for allowing me to use the following poster images:

Thanks to Red Grant for the following poster images and concept art:

Thanks to Gary J. Firuta for the following concept art:

More concept art, thanks to Peter Lorenz:

Ken Adam, as Production Designer, worked closely with John Stears (Special Effects) in designing and producing several underwater vehicles for the film. Here are Adam's sketches for several sets aswell as the 'Disco Volante', thanks again to Red Grant: