Pelikan P1 how do you remove the piston

[Flounder]

I think I have your address somewhere but PM it to me anyway and I will send you an entire piston with seal.

There ought to be some sort of deus ex machina emoticon for this kind of post. This will have to do instead!

[Ernst Bitterman]

Thank'ee, Thank'ee. I've definitely got your address, but unless you kept the corner of an envelope there's no reason you should have mine.

edit to add entire agreement with Flounder.

[Ernst Bitterman]

Part arrived and installed, and the pen has been running around singing this:

...except in reference to Jeph rather than itself.

[Jeph]

Hooray!

I am glad that we have managed to bring another nice pen back.
That transit time was pretty bad, even for going overseas, but all is well that ends well.