Vintage Rodur fountain pen, a German-made writing instrument typically dating back to the 1950s or 1960s.

Rodur was a smaller German manufacturer active during the post-WWII boom of the European fountain pen industry. While less famous today than brands like Pelikan or Montblanc, Rodur pens are recognized by collectors for their reliable construction and classic 1950s aesthetic.

• Design: It typically features a marbled or solid-colored barrel and a black cap with a gilded (gold-plated) clip and cap ring.
• Filling System: This model is a piston filler, a mechanism common in high-quality German pens of that era that allows for a larger ink capacity than standard cartridges.
• Ink Window: The translucent blue section near the grip is an ink window, designed to let you see how much ink is remaining in the barrel
• Marked as an "FK" nib in sizes ranging from Fine (F)