"GATED BUFFER" is printed in white on the component side of this circuit card. Half of the green substrate is covered by a brass plate. There are two circular holes in the substrate at the extraction end. On the solder side there are several inspection stamps of varying types between the holes.
Scientific Data Systems (SDS)
Printed in white at extraction end of component side
Assembly number printed in white at extraction end of component side
Stamped on whtie sticker at extraction end on component side
Stamped at extraction end on solder side
Copyright number printed in white toward extraction end on component side