The object consists of one (1) logic module with four female, black plastic connectors along the left side. 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 dated "28 JUL 1980, JOB/ORDER YJ9735" is extant and remains with the object.
Date
1965 ca.
Manufacturer
International Business Machines Corporation (IBM)
Identifying Numbers
Other number
2B471
Incised on one of the four connectors, solder-side
Other number
4161595A9508D0
Printed in white on two of the four connectors, component-side
