Nib: Fine 14k Gold
Duofold Button- fill, made in USA GEO.S.PARKER DUOFOLD MADE IN U.S.A. Patented Black Permanite Junior Slim 4.5 inch capped
1921—1933
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