This W023 module has a green board with with two holes in the middle. There are also two rivet holes at the extraction end on the component side. A round red inspection stamp can be seen between the rivet holes.
Date
1966 ca.
Manufacturer
Digital Equipment Corporation (DEC)
Identifying Numbers
Model number
Connector W023A
Printed insolder on the circuit side of the module
Other number
1-69
Printed in solder on the circuit side of the module