Note there are much higher-res photos linked at the
bottom of the pages, e.g.:
https://cds.cern.ch/record/1847689/files/85-1-583.jpg
There you can make out all sorts of details, the "Siemens" logo,
"7?890" actually, rather than 7890, a MODCOMP mini (lower left), "Control
Data" name/logo, an ASCII-art Mona Lisa behind the windows of the 2nd floor
mezzanine, a Gandalf terminal switch (mid-left).