Retro 51 Tornado fountain pen, P-51 Mustang — A tribute to the WWII classic airplane. The P51 Mustang finely crafted pen is acid etched to produce "rivets" along the barrel and then stone washed to give the trims an antique silver finish. The pen is equipped with a German-made JoWo #6 stainless steel nib and a contoured grip section. Also equipped with a converter for bottled ink. Standard international ink cartridge refills for this pen are available in our store under Refills. Gift boxed in Retro 51 gift tube that also doubles as a pen stand.