Consult the Doctor Episode 34

With today:
01:20 When is a piston a piston?
01:50 Are there pens that can be used on a plane during the entire flight without leaking?
03:45 Any fountain pens you regret selling?
05:30 How do you know when it’s time to sell a pen?

Liked the post? I would be honoured if you would consider supporting me on Patreon!