Because I'd been meaning to do it. I'll try to post an updated scan that's better color corrected, but this does at least show approximately correct color, and, more importantly, relative color to other similar inks.

What's not showing:

1) The Dostoevsky is a softer color than this scan shows. It's a delicate color.
2) The eternals (bottom three) are all a bit greyer than they appear here.

hooray, this is really so informative! I have to stop staring at it and get back to my research...

Thanks for doing this comparison. The layout is very helpful.