Nib: Medium14k Gold Flexible
Parker Duofold Black Permanite with two gold bands Junior 4.5 inches capped Button-fill Patented 1921-33
The Duofold is the pen that actually made the Parker Company one of the greatest pen-manufacturers of the world. Until the Duofold few pens were made of anything but black rubber. Parker found a method to make the rubber in a red-orange colour, and when the pens began to sell they really sold. The Duofolds had their world premier in early 1921.