"Priority Interrupt" is printed in white on the component side of this circuit card. There are two white stickers at the extraction end; on one of them there is a handwritten "38".
Manufacturer
Scientific Data Systems (SDS)
Identifying Numbers
Model number
LT16
Printed in white at extraction end on solder side
Other number
107 F
Stamped on solder side
Other number
123379
Assembly number printed in white at extraction end on solder side