Pelikan Souveran R 805 Stresemann Roller Pelikan The barrel with the deceptively simple anthracite stripes is made of cellulose acetate, using a taditional process that‘s extremely work-intensive. For the black, finely turned pieces, high-quality resin was used. The clip and the rings are plated with palladium. Every single writing instrument is mounted by hand and carefully checked to fulfill the strictest quality criteria.