Nautilus Porthole, Tentacles and Mystery Through the porthole, the Le Grand Dupont lighter appears, encircled by tentacles, the submarine’s shadows revealing the first moments of Mobilis in Mobile. Jules Verne’s imagination comes alive, turning every instant into a deep-sea adventure. Available in boutiques & on st-dupont.com​ #STDupont #legranddupont #writinginstruments #julesverne