> Are you talking about the November 1970 issue of
National
> Geopgraphic?  
  Can't be -- Illiac 4 was either not yet in
existence, or alive
 and well -- certainly not scrapped. 
There are two articles in the mentioning
   November 1970   "Behold the Computer Revolution"
   October  1982   The Chip
The second one has the PDP8 dealer and the scrappiac.
John A.