Pelikan M800 DemonstratorThe Pelikan M800 Demonstrator fountain pen is a special edition offering complete visibility of its intricate internal piston filling mechanism and ink level through its transparent resin barrel. This model has been released in various iterations, each highly sought after by collectors. The inaugural M800 Demonstrator was launched in 2008 for Pelikan's 170th anniversary, featuring clear transparent resin and, in some instances, etched labels detailing