Parker Duofold Ballpoint Pen (Replica) dedicated cap, PT color. With a twist mechanism. Genuine product, unused. Parker Duofold replicas have been sold since around 1990. You might wonder if this is just a cap, but when you insert it into the barrel, it becomes a complete ballpoint pen. We primarily ship from the post office, so we are unable to ship on Saturdays, Sundays, and holidays. Thank you for your understanding.