Graf von Faber-Castell Guilloche Viper Green Fountain PenThe Guilloche writing instruments made of precious resin are distinguished by a special process. Each one is engraved individually using a method otherwise reserved for jewelry or silver accessories. The barrel is then hand lacquered and repeatedly polished. The result is a unique and most interesting surface texture. No two writing implements are identical: each is an individual example of the craftsmans art. Cartridge converter system Hand made 18