Every inventor living in that world would be damn proud of himself if he could create the machine that not only does not sink but even floats and swims underwater! Of course, for the sake of undetectability to the naked eye, it will be painted turquoise. Of course, it has to look good and work even better as well, so copper ornaments are essential. On top of that, there’s a Modern D4 included, with rounded edges and much more detailed engravings. An interesting combination, if not contradicting itself - but regardless of the intentions, it certainly catches the eye like nothing else.