|Parker Duofold Jr|
|Streamlined Duofold Jr: the only difference is the friction fit section and the slightly tapered, rounded off ends. This pen also still has its original factory three-part pressure bar.|
|Left: Streamlined Duofold friction fit section. Right: Original (flat-top) threaded section.|
How Does it Work?
When the button is pressed, the pressure bar is forced down and bows outward, depressing the sac. It's a very fool proof and failure proof filling system as there is little in the way of moving parts that can break. When the button is released the bar goes straight allowing the sac to take in ink. The original factory pressure bars have a lip that rests on the blind cap nipple, which holds the bar in place. The new replacement are longer and rest against the section of the pen.
|New Two Part Replacement Duofold Pressure Bar: When the button is pressed, the bar bows out depressing the sac.|
|Duofold Jr. seen above back together|
|Several Different Models- L to R: Flat-top 'True Blue' long, jade green Jr. streamlined, red flat-top Jr., chased hard rubber Deluxe Lady Duofold|