I have two 1980's Parker Duofold International fountain pens and I want to swop the nibs over. Currently I have simply unscrewed the nib sections and swopped them, however my question is this. Do the nibs of these Parker Duofold simply unscrew from the nib section, in the same way that you can do with Parker 75's or Parker Sonnets?
Can anyone advise me, if this is something as simple and easy to do as with some of the other Parker pens, without having to send the pens to a nib specialist?