Well those are a lot of pens! Some do bring back memories. I almost forgot that we did had to use fountain pens (cartridges) when starting secondary school. Combined with a tintenkiller (don't know the English word for it and too lazy to look it up) (Still looked it up and it is the same in English).
Don't have lots of memories about pens. Maybe only one which I did get when we did finish a big project for pension funds in the Netherlands. Still have that one. For the rest the pens we do have in the house are or bics or pens we got from a company. I rarely use pens anymore these days.
Great to see that those pens brought so many memories back. And that pen in the first image is a real gem.