This is a five position SAGE module with 3 large octal vacuum tube and 2 other metal octal units installed. There are also 3 logic boards and one other board with only one component installed. There are two twenty-four contact parallelogram connectors in the rear.
Date
1958 ca.
Manufacturer
IBM
Identifying Numbers
Other number
0464
Printed on label on handle
Other number
3087985
Printed on label on handle and stamped on the metal frame