This Graf von Faber-Castell case with zipper for two pens comes in a beautiful indigo colour to match the Guilloche fountain pen and ballpoint pen of the same colour.Graf von Faber-Castell Italian calfskin for the accessories in the “Epsom” series, a material that is highly prized by experts for its excellent quality. Tough but supple, calfskin leather is a material that lends itself to fine crafting. “Epsom” gets its typical structure using an embossing technique and is very hard-wearing.