STEAMPUNK SERIES – NAUTILUS. Comes with Capsule, Windowed Display Box with Certificate of Authenticity. There is so much going on on this coin (captured is striking detail) that it takes hours just to soak it all in! Having left the legendary Nautilus in deep-sea diving gear, we encounter giant sea snails, turtles, octopuses and shipwrecks. Of course, we also come across the series regular – the penny-farthing rider. Smartminting® (Ultra High Relief).