I have an Esterbrook J with a 2668 nib and an Eight-ball desk pen with a 9556 nib. I would like to swap them, but I don't know if I can. I know that the nib on the J screws out, but the desk pen nib seems to be friction fit. I was always under the impression that all the Esterbrook nibs screwed in. Am I missing something?
Thanks
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