This site looks to be a mirror of Bitsavers? It has more on Convex. The overview ( http://bitsavers.org/pdf/convex/C-1_Overview.pdf ) is more high-level look at it.
http://bitsavers.org/pdf/convex/
And 1000bit has brochures
http://bitsavers.org/pdf/convex/
And 1000bit has brochures
Bitsavers is cool. They also offer an rsync endpoint so that you can efficiently mirror the whole collection. I have a mirror at home (it's about 1.5TB by now) and every weekend I check out the new stuff that came in this week. So much interesting history being preserved there!