There must be something about the number 300 that is subconsciously attractive. There’s a graphic novel and film of that name (and the event they relate stands as an example too; three hundred guys is a lot for a stroll, but it’s a strange number for a military unit); there’s a couple of automobiles that have used it; and there is, more to the point of my site, a pen from Sheaffer which used it, and for which a write-up now stands.
In addition to that page, I’ve also added a new entry in the ink profiles for Organics Studio.