S.T. Dupont Line D Medium Fountain Pen - Guilloche Blue & PalladiumThe Guilloche is named for the intricate decorative technique adorning its surface, created by engraving with great precision and then adding a transparent layer of natural lacquer over the engraved surface. The solid brass body and cap are lacquered multiple times and hand polished to create a smooth, unique texture on the surface as no two writing instruments are identical. The blue natural lacquer finish is adorned with palladium plated fittings.