The golden key featured in Cocteau's film is affixed to the top of the body and corresponds to a lock incorporated into the cap ring
The fountain pen's nib is made in 14K gold plated partially in platinum
Line Estie Reference ENB156 Material Resin Color Blue Trim PVD gold Nib Stainless steel with PVD Gold Filling System Cartridge / Converter Closing System Screw-on Warranty 3 years Country of Manufacture United States of America
and sharpening
The cap and barrel in all versions are made of marbled Auroloide
S.T. Dupont Montecristo La Nuit Cufflinks, Lacquer, Lacquer, Blue, 005715 nakaya-cigar The golden key featured inLine Limited Edition Reference 005715 Material Lacquer Material Palladium Color Blue Clasp Whale back closure Warranty 2 years Country of Manufacture France Additional information: The Montecristo "La Nuit" line, inspired by the novel by Alexandre Dumas, "The Count of Monte Cristo", where the hero Edmond Dants spent much of his life in darkness, far from his beloved, abandoned by all, and imprisoned on an island, experienced truly turbulent and harsh