The artifact is a two-sided printed circuit board with a double-sided 52 pin edge connector on the rear edge. There is an illegible white adhesive dot on component side. There are five black inspection stamps on the solder side.
Manufacturer
Scientific Data Systems (SDS)
Identifying Numbers
Other number
(C) SDS 65
Printed in black component side, right edge
Other number
128385 A
Handwritten in red on masking tape, component side front edge
Other number
ASSY NO. 117000
Printed in black, component side, front right edge
Other number
IT13
Printed in black, component side, front right edge
