I've been lurking around FPN for a while now, and this is my first post!
I wanted to share something interesting about the Quink Permanent Blue. I couldn't find any green Quink anywhere, so I tried calling Parker to see if they stocked it, or could point me to a retailer that did. They didn't and told me all they had was black and permanent blue.
I had always wondered why permanent blue had "permanent" in its name when it is not waterproof at all, and fades fairly easily. So I asked them, and got an interesting answer.
Apparently the "permanent" Quinks have metal incorporated into them that essentially gets embedded into the paper. When the ink fades, or is rendered illegible due to water or whatnot, you can get what was originally written recovered professionally.
Did anybody know about this?!?! I've used Quink as my everyday writing ink for ages, and had no idea. I was mindblower. Is this a feature found in any other inks?? Very interesting, or at least IMHO.