Penlux Masterpiece Delgado Fountain Pen in Firefly – Fine Point – NEW in Box. Penlux has unveiled their latest piston-filler pen, complete with a rolling clip and a diamond-cut band, The Masterpiece Delgado Firefly fountain pen. The Penlux Masterpiece Delgado, in a smaller and lighter form, upholds the same dependable construction as the popular Masterpiece Grande from Penlux, making it an excellent choice for daily carry. Penlux Masterpiece Delgado Fountain Pen in Firefly Specifications. Body Material: High-quality, PMMA Resin. Nib: German Stainless Steel w/ IP Black plating. Filling Mechanism: Piston Filling System. Pen Length, closed: 5.63 in. Barrel Diameter: 0.62 in. AUTHENTIC & GENUINE PRODUCTS. We are an authorized dealer for all the brands we carry. We do not sell imitations of any sort and only carry genuine, original brand name writing instruments and accessories. Please refer to your local import laws for details. We strive for your ultimate satisfaction. We cannot accept opened and used bottles of ink, ink cartridges, used notebooks, engraved pens or pen cleaning supplies. When you receive any new fountain pen, we recommend to inspect it thoroughly and if necessary, lightly dip the nib tip in washable ink to test it. Make sure all of your auctions have ended prior to checking out.