Can we point you to web sites with pix?
For DEC gear, you might look at
http://research.microsoft.com/en-us/um/people/gbell/Digital/timeline/tmlnho….
There's likely a taker for many of what is pictured. People have
mentioned VAXen and PDPs. If something is found pictured in the 12-bit
section there will certainly be *very* interested takers, and if they find
objects in the 18- or 36-bit sections, they may want to post guards.
KJ