Featuring Pelikan’s signature Stresemann pattern, the Souverän M600 is available here in the extremely limited Tortoiseshell White color scheme. The lightweight barrel is decorated with golden-green, deep brown, and clear pearlescent stripes, and becomes translucent toward the tail, allowing you to see the ink inside. Fitted with a 24-karat gold-plated finial, trim, and the familiar pelican-beak pocket clip, the white cap opens to reveal a 14-karat gold bicolor nib. Like other M600 models, this fountain pen uses the differentiated piston mechanism the company first introduced in 1929.