The Graf Von Faber-Castell Guilloche Barley Rhodium Fountain PenThe Graf von Faber-Castell Guilloche fountain pen has a unique design that distinguishes it from the ordinary. As the name implies, the finish is characterized with guilloche patterns etched into the colorful resin barrels. The fluted metal caps, curved, spring-loaded clips and tapered grips are silver-plated and coated with rhodium to prevent tarnishing. The Guilloche fountain pen has a superior, 18K gold nib. Fountain pen uses cartridges or converter