Vintage Parker 51 Aerometric Blue Barrel Gold Filled Cap Fountain PenManufacturer and Country Parker, USA 1960's Model 51 Nib Hand crafted 585, 14K solid gold mono tone nib with medium size. Material Dark Blue plastic barrel, with 12K Gold filled cap. Type Aerometric System Condition Pen is in used condition, has very minor signs of wear and age, without any damage. Overall it's in excellent condition. Comes without original box. For more details please see the photos. They are part of the description. Youll get the