Parker 51 Fountain Pen Cap Arbor (Tool #8057) yafa This style pre-dates the Parker

This style pre-dates the Parker Vacumatic

Refill has long since dried out

Pen length is 5

advising on how to do it and how not to do it

From the day that Parker had just bought Eversharp and was experimenting with the easily removable nib that looks a lot like a 45 nib/feed unit

Parker 51 Fountain Pen Cap Arbor (Tool #8057) yafa This style pre-dates the ParkerUse this tool to lock onto the inside of the inner cap on a Parker 51 fountain pen so you can go to the other (outside) and remove the jewel ("Clip screw, really) and bushing using other tools (Gooey cubes and item #13732) while applying torque through the large, comfortable handle on this tool. This is a duplicate of Parker repair tool #8057. Pairs well with our Clip Screw Wrench, Item #13732