This object consists of one (1) logic module with four female, black plastic connectors along the left edge. Both sides of the substrate are covered by a gridded field of square-shaped solder marks, and the front with various components. A parts identification card marked "JOB/ORDER YJ9737" is extant and remains with the object.
Date
1965 ca.
Manufacturer
International Business Machines Corporation (IBM)
Identifying Numbers
Other number
2B319
Incised on one of the four connectors, solder-side
Other number
4160882B8376YC
Printed in white on one of the four connectors, component-side
