Object has 40 memory modules and 40 empty IC sockets. The "128K" portion of the object name on the component side has been modified and is difficult to read.
Date
1979 ca.
Manufacturer
Xerox PARC (Palo Alto Research Center)
Identifying Numbers
Other number
12 79
Silk screened on component side
Other number
216274B
Labeled as "PWB NO." This number is silk screened on component side