[rescue] mystery machine

[bluecanary at shaft.shaftnet.org]

I've just joined the list on a friend's advice.
I found a place with an "old" (no actual date) 6-processor Sun with 6 1-G 
drives. It's big and heavy-- maybe about 400 pounds, and the size of a 
small table. They want $250 for it. That's all I know.  Any idea what it 
might be? What's useful, and could be that old? Anything I should avoid?
I'm going to go look at it tomorrow, and would love some background 
knowledge.

thanks,
Ariel