This is a B136 module with a green board and a blue plastic extraction handle attached by two rivets.The component side is marked with three inspection stamps. "DIODE GATE B134 B" is stamped in solder.
Date
1966 ca.
Manufacturer
Digital Equipment Corporation (DEC)
Place Manufactured
Maynard, Mass.
Identifying Numbers
Other number
016
Found on reverse side of extraction handle
Other number
3-70
Found on reverse side of substrate toward handle end