Diplomat Aero Oxyd Brass SteelThe Oxyd Brass Collection fountain pen is a remarkable writing instrument that combines vintage aesthetics with modern engineering. Crafted from oxidized brass, this pen features a body with groove like depressions, reminiscent of the iconic Zeppelin airships. The oxidation process not only gives the pen a unique, aged appearance but also ensures that each piece is distinct. With a weight that feels substantial in the hand, the pen promises durability