The "CG" logo on the corner appears to be one of the many Compugraphic
logos.
Possibly a a board from a custom phototypesetter that drove a CRT to
expose the photomask (film)?
On 12/06/2016 06:57 PM, Chris Pye wrote:
I?m moving my collection and found this board amongst
some others.
https://drive.google.com/open?id=0B0m4VYF4tIU5aXJMSHBwUDJMUWM
<https://drive.google.com/open?id=0B0m4VYF4tIU5aXJMSHBwUDJMUWM>
Cheers,
Chris