There is a piece of masking tape on one side of the cube with information about a test. The test date is given as 2 March 65. On two sides of the cube there are "memory diode matrix" boards. On another side there is an array of resistors.
Date
8/30/64
Manufacturer
Scientific Data Systems (SDS)
Place Manufactured
Santa Monica, Calif.
Identifying Numbers
Model number
100559-0
Stamped into a label on the side frame.
Part number
9104-A
SDS part number stamped into a label next to the big connector
Serial number
380
Stamped onto a label next to the the big connector
Serial number
51-007-128
Ferroxcube serial number on a label on the frame at the side.