The Papillon stylish silhouette and dramatic colors symbolize and characterize the designer’s interpretation of what butterflies represent and have personify through time. This sentiment serves as inspiration for Delta's artisans as they handcraft each piece with skills passed down through generations. The Papillon in resin- numbered edition : A version in special resin with an ebonite effect and available in 4 different colours (redgreen- grey - blue) and available as fountain pen and roller with cap. The roller is convertible into ball pen. TECHNICAL CHARACTERISTICS Cap : Hand turned from solid bars of celluloid in the celebration and celluloid versions and of resin in the other versions. In this version the Delta logo in sterling silver is offered instead. Cap Ring : The ring of the cap is 925‰ sterling silver. The ring is engraved by hand and reproduces an old Roman decor featured in old paintings found in the ruined city of Pompei. Body : Hand turned from solid bars of in the resin. Clip : in special elastic metal alloy, equipped with a small rolling wheel to facilitate sliding in and out of the breast pocket. Is platinum plated for the daily version. Nib : 14kt in the resin version. All Papillon fountain pens are offered with a converter or cartridge filling system.