In reply to fluffy.

Happy to help!

If I'm not using them at least once a month, I tend to let them go. There are about 10 that are getting incredibly regular use every week, though a small handful that I've restored and more carefully tuned are used on an almost daily basis.

I'd almost forgotten I had aggregated a page for my typewriter collection and articles if you're curious about the list or other details: https://boffosocko.com/research/typewriter-collection/